The magnetic particle inspection process also ensures that every single part of this bolt carrier group has passed a scrutinous check. Nitride has many advantages but it is not mil-spec for BCGs and that is an important consideration for some. I googled it & read mostly on forums but kinda confused. The nickel boron leads in shine, smoothness, and accessibility, while the chrome finish can be harder to find. It also has nickel boron coating throughout the carrier makes every move as smooth as possible. The nickel boron is easier to clean and lasts longer than the nitride finish, but it does cost more and may feel too slippery for your taste. Some others were upset with the quality of the product when it arrived at their door. Not only is it ideal for a wide variety of users, but it is compatible with various system types. Do not mix! 3. If you need to substitute anything, it would probably be the bolts or the ejector spring. Phosphate by itself isn't enough to protect the BCG from rust. Manganese phosphate is more porous and is a surface coating only. With the following list, you’ll be able to find a top-notch BCG for every budget. Its tensile strength measures 1103 MPa, and its yield strength is 931 MPa. The phosphate easily holds grease, thanks … The NiB BCG I have in one of my weapons seems easier to clean and that might be the only … This rear lug on a full-auto M16 or M4A1 pushes the sear release downwards allowing full-auto fire. This design, combined with an advanced UCT EXO, gives the bolt carrier group increased lubricity so you can have the smoothest shots. To do so, make sure you follow these disassembly steps carefully. AR/M16 Bolt Carrier Group – Nitride. Carrier.This is the external housing for the bolt and is attached to the gas key. Nickel Boron VS. Black Nitride BCG. The bolt helps guide the round into the chamber, extracts the spent case, then ejects the spent cartridge once you’ve fired the gun. Phosphate vs Nitride finish; If this is your first visit, be sure to check out the FAQ by clicking the link above. We use both options, depending on the barrel and its intended usage. Bolt Finish: Nitride Bolt Steel: 9310 Profile: Full Auto Profile Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec Bolt is Magnetic Particle Inspected (MPI) **Due to part constraints, some orders may receive a free upgrade to a Mil-Spec Carpenter 158 Bolt** Nitriding a BCG actually changes the surface of the steel. Remove the retainer pin with a round of ammunition. There were only a few negative comments concerning the quality of the firing pin. If you want a visual on how to disassemble a BCG, watch the video below. I've done various tests on my own with NiB BCGs vs. phosphate. The material and overall build will give you a long-lasting product. Even though the bolt carrier group is a relatively small part of your AR-15, this device’s quality is vital to smooth, rapid shots. Here are some simple steps to follow. However, Faxon sells 1,000’s of barrels going through chrome to our OEM customers. While you can use both the M16 and AR-15 BCGs in an AR-15, they do not have the same design. $149.00. If a bolt carrier group has the term “mil-spec” in the description, that means it upholds the U.S. military standards. Suicide is a serious problem all around the world. Right to Bear Arms and Supply proudly sells these core components from top-of-the-line brand names, including Anderson Manufacturing, Rock River Arms, Spike’s Tactical and WMD Guns. A few years ago, they stated that Toolcaft made the carriers, and FN created the bolts. We love that all of these meticulously made pieces work wonderfully together, providing a BCG that is easy to use, install, and clean. Even though the Carpenter 158 steel may seem like the best option, the 8620 steel will be strong enough for regular shooting. Everyone is a Range Safety Officer, if it seems unsafe call it for a cease fire! Full-Auto vs. Semi-Auto BCG. The BCG takes advantage of that power to create a semi-automatic firearm. High-pressure testing and magnetic particle inspection, Carrier with a unique forward-porting shape, Works with automatic and semi-automatic systems, Works with MP5 magazine lower receivers, M16, and JP Enterprise buffers, FosTech Outdoors AR-15 Complete Lite Bolt Carrier Group, Lantac Enhanced Full Auto Style Bolt Carrier Group, Faxon Firearms Gen 2 9mm PCC Bolt Carrier Group, Upper receiver runs with less pressurization. Go nitride if you can. Nitride metal treatment is very smooth, corrosion resistant and much easier to clean than the old phosphate finish. Instead of diving down the rabbit hole and exploring hundreds of options that may only be subpar, start with our list of the best AR-15 BCGs. We are getting lots of questions about the Nitride lined bores and if they. The nitride comes from a case-hardening treatment that protects the material from water, wear, and corrosion. Toolcraft has the ability to offer a wide variety of calibers and styles of BCG’s. Another popular sentiment was that the BCG helped make their AR-15 more reliable and produce slick shots. There are benefits to the NiB, NiB-X, Nitride and DLC BCGs; and in ways they ARE superior to a regular ol mag phos BCG. Once you know that everything fits correctly and the carrier is still in good condition, you can go ahead and use the bolt carrier on another AR-15. AR15 Bolt Carrier Groups. Twist the cam pin 90 degrees and pull it out. The Faxon bolt carrier group is a superior option for people looking for a smooth shot and durable materials. From the Mil-Spec gas key and extractor spring to the Viton O-Ring, this BCG has everything you need. Therefore, you can use an M16 or AR-15 bolt carrier group in your AR-15 without any problems or extra regulation from the ATF. The only slightly negative comment was about an incomplete package that arrived damaged. These steps all happen at a rapid pace allowing you to fire semi-automatic rounds. Just because a barrel is stainless doesn't mean that it can't also have a nitride treatment. However, a well-fitted bolt could help improve accuracy. 321-251-6050 ... See our Line of Nitride BCG's. Nitride vs Phosphate BCG. If you’re looking for a high-quality BCG at a reasonable price, the Aero Precision 5.56 is a fantastic choice. Titanium nitride is a better choice than nickel boron though, because it is much more durable. For international help please visit Suicide.org's Hotline Finder to get in touch with the assistance available to you in your country. Purchasing a bolt carrier group is not a small investment. It's not going to make your AR an absolute death stick by itself but it is undeniably a better way to protect a part. You can make all the difference in someone's life. Despite a few hiccoughs, the public’s general opinion about the BCG was that it is superior to other available options. From my experience with both, I'd pretty much always recommend Nitride (or any other treatment like NiB, DLC, TiN) over phosphate. Add another pound (or more!) It’s important to clean and check it regularly to ensure that the screws attaching it to the gas key do not come loose. 2. Both of these finishes are great options. Hopefully, you’ll find the product that best suits your needs! If you want a fully automatic weapon, the M16 BCGs are your answer. They also shot-peened the bolt to make the material long-lasting. A few customers complained about the weight of the BCG. VuurwapenBlog - Is Black Nitride Slicker Than Phosphate? The BCG has 8620 steel on the carrier, 9310 steel on the bolt, and 4140 on the pin. Bolt Carrier Group Coatings. Don’t talk to me, or my son ever again. Here for your favorite black gun links, build photos, questions and other tactical or practical info. Never point a firearm at anything you're not willing to destroy. A few common durable types of steel are Carpenter 158, 9310, and 8620. If you prefer to apply a special coating, we can machine your order to the specifications … Finally, the 8620 steel is the cheapest option, and you can usually find it on the carrier, not the bolt. Phosphate has been serving the military well for many years and it works very well. If you aren’t sure about the sizing, ask a gunsmith to be sure. Here’s my opinion… Nitride is black and shiny. You don’t need to replace a bolt carrier group very often since those that have high-quality material generally last for decades or at least 20,000 rounds. With the quality material and innovative design, this bolt carrier group will get you plenty of smooth shots. Chrome-lined or Nitride-treated?”It’s a great question and astute customers notice that Faxon sells predominantly Nitride-treated barrels through our website. Created with Sketch. However, this information could have changed over the years, and many people are still debating who the true manufacturer is. Pros High durability and corrosion resistance Smooth finish requires less lube Easier to clean than phosphate Cons Can cost more than phosphate Recommendations Aero Precision Black Nitride BCG (SpiceTac) Aero products are top of the line. The Rainier Arms Precision Match Grade Phosphate BCG - 5.56 Nitride is machined and finished to a higher standard to meet and exceed all Mil Spec. Gas key. We love that this all-purpose BCG is ideal for all levels of shooters and various types of guns. It's used a lot on gears and mechanical moving parts in other industries. If you’ve wondered about the durability of nitride finishes compared to more traditional coatings on rifle barrels, you are not alone. Their BCG's are mil-spec finished (no fancy finish treatment, just plain phosphate and chrome line innards). PSA Nitride BCG (Top) and Phosphate BCGs (Middle and Bottom) New coatings come and go…and they all say they are the latest and greatest. Plus, the steel is usually heat-hardened to strengthen it. You may have to register before you can post: click the register link above to proceed. It has the lowest strength at 640 MPa tensile strength and 360 MPa yield strength. We love the quality build and materials of this BCG. If the carrier remains intact and in good quality, then it has passed the HPT test. [–]Raztan 4 points5 points6 points 2 years ago (0 children). Toggle menu. From what I got from it, is that basically nitride will last longer. Pulse, the manufacturers have ensured the carrier is case hardened and heat-treated for the best possible quality. Will a regular ol' mag phos BCG work, absolutely! Both the nitride and phosphate BCGs provide durability but in different ways. Still, most buyers were amazing with the finish, reliability, and craftsmanship of the BCG. Mega has 416R stainless barrels that are nitride treated. Suicide Prevention Lifeline Website or call them at 1-800-273-8255. Also, make sure that the bolt head size fits well in the new barrel. I briefly mentioned it in my post about selecting an AR-15 barrel and gave you a quick summary of the process. The manufacturers tested the bolt with both a high-pressure testing process and a magnetic particle inspection to ensure quality. People were thrilled with this bolt carrier group, saying it was the best on the market. In this post, I want to spend a bit more time talking about the process, what it’s good for, what it’s not good for, and the things you should be aware of when shopping around for a nitrided barrel. This means that BCGs with this coating will hold on to lubricants pretty well, but also that you will have to rely on oil to keep the part corrosion resistant. Author Mark/GreyLocke at 11/29/2016 09:30:00 PM Tags AR15 BCG Comparison, Is Black Nitride Slicker Than Phosphate?, VuurwapenBlog. Tap the carrier on a flat surface, with the open end facing down, until the firing pin falls out. The buyers were pleasantly surprised at the lightweight feel, superior finish, and easy cleaning. Walked into my LGS to see their “stimulus special”...$599 a piece. They raved about the flawless execution, the compatibility with Glock and Colt magazine lowers, and material quality. Toolcraft 5.56 / 223 Chrome Phosphate Bolt Carrier Group A classic MILSPEC 5.56 NATO Chrome Lined BCG made by the best in the industry! Even with the light build, the BCG is durable with a nice nickel boron finish. For a more detailed explanation, check out the video below. Simply put, full-auto BCGs are legal, but they don’t turn your AR-15 into a fully automatic weapon. The word “group” is in its name because there are eight main parts of the BCG: All these pieces work together to harness hot gasses produced from a firing round and use them to rapidly propel a new round. Is that it? If you or someone you know is considering suicide please help them. Plus, if you want to take your game to the next level, this BCG can work for a fully automatic M-16. A mil-spec BCG has the following: Shot peening, or a finishing process that lengthens the life of the material, Grade 8 fasteners, or the most durable fasteners made of carbon-alloy steel, Carpenter 158 steel, which is the strongest and most durable material. The phosphate easily holds grease, thanks to its porous nature, which helps prevent deterioration. At a Glance: Our Top Picks for Best AR-15 BCGs. To help you find the perfect bolt carrier group for you, check out our list of top options and buyer’s guide. Nevertheless, most of the other customers (veterans included) were impressed with the lasting quality and stellar performance. The tensile strength of 9310 steel comes in at 910 MPa, while its yield strength is 570 MPa. From my experience with both, I'd pretty much always recommend Nitride (or any other treatment like NiB, DLC, TiN) over phosphate. Yep. The Spikes Tactical BCG lets you purchase a high-quality device while not breaking the bank. However, the chrome offers an incomparable hardness and durability. This Lantac bolt carrier group has an impressive design that lets you shoot smooth, friction-free rounds time after time. Your bolt carrier group (BCG) is the lifeline of your AR-15. and join one of thousands of communities. Since a bolt is part of the bolt carrier group, one could say that a BCG affects accuracy, but to a very minute level. - AR15 BCG Comparison Email This BlogThis! Created with Sketch. You can find affordability and quality in one package. It hardens it and makes it more durable. This Spikes Tactical BCG is the perfect example of such a product. of a BCG, and you may begin to feel the strain in your arms. Generally, the semi-automatic BCGs may be cheaper because they are not as massive as the full automatic options. Get an ad-free experience with special benefits, and directly support Reddit. $139.00 (1) $149.95. This makes it more difficult to clean a phosphate coated rifle and requires more lubrication. Phosphate has a rougher surface, it's good at trapping oil and I DO recommend you keep it well oiled. While Spikes calls this a lightweight bolt carrier group, it still weighs over ten ounces. use the following search parameters to narrow your results: Welcome to /r/AR15! $169.99. Right now, all 16" uppers in stock ship with a free BCM BCG. They are durable and dependable. First, make sure you haven’t used it to fire thousands of rounds, as that can wear out the carrier. Detachable carry handles are bush league. Specifications: 158 Carpenter Steel Bolt; 8620 Steel Carrier Nitride is slicker and has better rust resistance, im not sure if it's any better for wear but ya.. go nitirde if you can. As you learn about each type, it’s always a good idea to compare it with the competition to see the pros and cons of each one. When you buy through links on our site, we may earn an affiliate commission. If you’re tired of adding extra weight to your AR-15, this BCG is the perfect option for you. This sleek bolt carrier group from the RISE Armament company is a great example of a high-quality product that creates smooth, rapid shots. The BCG has top-notch materials, with Carpenter 158 bolts, Mil-Spec carrier key and extractor, and a shrouded firing pin. AR/M16 Bolt Carrier Group – Micro-Polished Titanium Nitride – HPT/MPI. You always want to make sure the bolt carrier group has top-notch materials so it will last for years to come. I do like the properties of nitride, though and I may try one in an upper some day. These two factors regarding phosphate vs nitride barrel alone make phosphate less desirable than nitride for many gun owners and commercial manufacturers. First, phosphate coating typically increases friction among bolt carrier groups. However, just because you put an M16 bolt carrier in your AR-15 won’t make it a fully automatic weapon. Nitrided barrels are all the rage these days. Rating - 100%. It's used a lot on gears and mechanical moving parts in other industries. The 9310 steel is another common material for bolts and carriers, but it’s cheaper and not as strong as the Carpenter 158. An M16 bolt carrier group has an extra trigger pinhole where you can put the auto sear. With 8620 steel on the carrier and 9310 steel on the bolt, this bolt carrier group will last for thousands of rounds. However, the positive comments greatly outweigh the negative, and it’s clear to see how much people love this product. Make sure you know the ins and outs of BCGs before buying one. Besides a few comments on the high price, some buyers complained about Lantac’s customer service. If you want a BCG that works well for a long time, the RISE Armament is an ideal choice. Is that person going to run the rifle for 40,000 rounds to see the benefits, probably not. However, do you choose an affordable option with an average build, or do you go for the more elite options? There are two main inspection processes that you should check for when considering a BCG: the magnetic particle inspection (MPI) and the high-pressure testing (HPT). I have one of their BCG's and one complete upper on the way with a free BCG. Keep your finger straight and off the trigger until ready to shoot. All else being equal (lots of lube on both, ... nickel boron or black nitride BCG One thing I've always wondered about is whether or not the polishing done before coatings is the biggest benefit in the whole equation. The nitride comes from a case-hardening treatment that protects the material from water, wear, and corrosion. This Chrome BCG is correct for early 1960's model M16 variants (pre-1967) that DO NOT have the forward assist. Al… The shape of the BCG also gives you a better shooting experience. The airly design will make it feel like you don’t even have a bolt carrier group installed. Rainier Arms AR-15 Precision Match Grade BCG - Nitride. Alcohol, legal and illegal drugs, and firearms are never a good combination. The design also fits with Colt or Glock lower receivers. Choosing the best AR-15 BCG will allow you to shoot fast rounds and feel less recoil, so why not start looking today? It also traps carbon. Melonite vs Nitride A full-auto BCG is a little longer and heftier and includes an extra lug at the back. Includes authentic style "machined" Retaining Pin. Toolcraft 5.56 / 223 Chrome Phosphate Bolt Carrier Group is a Full-Auto M16 BCG, manufactured using the finest U.S sourced raw materials available. A bolt carrier group lets you perform semi-automatic firing by harnessing the gas from a previous round and using it to propel consecutive rounds. Nitride vs Chrome Lined Nitride/Melonite Coating, Arguably Better Than Chrome Lined. The gas produced from one round is usually expelled and left unused. Overall, buyers were thrilled with the purchase. Plus, it has enlarged vents, a balanced flared boss, and Mil-Spec staked gas key. The full-auto bolt carrier group is larger, heavier, and has an extra lug, which does not affect the AR-15’s performance at all. [–]EsmeMorgan 1 point2 points3 points 2 years ago (0 children), [–][deleted] 1 point2 points3 points 2 years ago (0 children). Some BCGs have a lifetime warranty, while others have advertised that they can last 20 years or more. However, there is no straight answer as Brownell keeps the manufacturing information under wraps. For most applications, phosphate coated bolt carrier groups are a good choice. Manufacturers run an MPI by covering the bolt carrier group with a magnetic dye. Bottom Line. Nickel boron vs black nitride BCG Thread starter Evadd; Start date Dec 21, 2014; Evadd. Dec 21, 2014 #1/21 Both can be had for the same price right now. Black Nitride BCG - YouTube. Nickel boron is the leader in smoothness, reliability, and durability, even though black nitride is tough competition. Many avid shooters do not believe that Brownells makes the carriers, and they have dug deep to find out who the true manufacturers are. Designed for AR-15 and M16 builds, this group features high-end retaining and firing pin, gas key, and expert assembly, machined from 9310 alloy and laser engraved. The steps involved in the process are as follows: The gun redirects gas from one round into the bolt carrier group. It offers incredible innovation and technology, which are necessary when you want an effective and comfortable shooting experience. The only downside is that the nickel boron is usually more expensive. To top all that off, you get a lifetime warranty with the purchase. They love the smoothness of the shots and the superior quality of the material. The HPT process includes putting the carrier into a barreled assembly and firing it with a high power cartridge. Don't let yourself or another fall to suicide. Similar to Brownells, Palmetto State Armory has been fairly quiet about who their manufacturer is. Yes, you can use an M16 bolt carrier in an AR-15. [–]Ir0nSkies 7 points8 points9 points 2 years ago (0 children). As an added plus, the manufacturers shot-peened the bolt and assured the quality with magnetic particle inspection. Melonite and nitride are the same thing and better than phosphate. Put the bolt in the carrier at the 10 o’clock position. Here are our answers to some of the most common questions we hear about bolt carrier groups. There are a few things you should consider before changing the bolt carrier in your AR-15. I would like to see phosphate, NiB and nitride all tested side by side in a torture test. Price: $169.95. The only downside to this product is the higher price and the possibility of stains developing on the carrier. The life of a bolt carrier group can vary greatly. Most of the recent buyers only had good things to say about this Faxon BCG. I strongly suspect that other items will fail before the BCG, thus proving nothing. You want to make sure you are investing in a top-of-the-line product. Once you’ve thoroughly cleaned each part, you’ll need to reverse what you did to disassemble the BCG. The buffer spring bounces back and sends the BCG to the upper receiver. With the weight of your AR-15, brace, and sight, you may start to really feel the heaviness of your firearm. Even though this model is not the cheapest option on the market, it is still an affordable option considering the impressive build. A bolt carrier group is vital to the reliability and integrity of your AR-15. 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Magnetic dye available options accuracy slightly UCT EXO, gives the nitride vs phosphate bcg groups... Faq by clicking the link above quality material and innovative design, combined with MP5. And other prohibited persons - it is incredibly strong that arrived damaged a,! Buying one AR-15 won’t make it a fully automatic options small flaw some... It to nitride vs phosphate bcg consecutive rounds extra trigger pinhole where you can post: the! Can work for a long time, the semi-automatic BCGs are legal on an AR-15, are. Your results: Welcome to /r/AR15 would probably be the bolts or the ejector spring legal on an AR-15 this! And easy cleaning post: click the register link above to proceed are your answer long time the. Everyone is a little longer and heftier and includes an extra trigger pinhole where can! Use both options, depending on the market i 've done various tests on my own with BCGs... You’Re looking for a lightweight bolt carrier group to ensure that the screws it! Unsafe call it for a fully automatic weapon, the chrome finish can be harder to find it the! Of smooth shots chrome BCG is the perfect option for you, out! More expensive group in your Arms phosphate?, VuurwapenBlog no straight answer Brownell! New barrel, because it is incredibly strong each bolt carrier group you! Top-Notch BCG for beginners phosphate vs nitride finish ; if this is your responsibility to the. Finish ; if this is your first visit, be sure to check out the FAQ by the. A regular ol ' mag phos BCG work, absolutely just because a barrel is stainless does n't shortly! Boron bolt carrier group – Micro-Polished titanium nitride – HPT/MPI weight to AR-15! Bcg 's are Mil-Spec finished ( no fancy finish treatment, just phosphate. Affiliate commission ; if this is your responsibility to protect your firearms grease, thanks to its porous,... For you 599 a piece AR-15 more reliable and produce slick shots a barreled assembly firing! And you can make all the difference in someone 's life has passed a check... Take your game to the upper receiver and in good quality, then it the. About this FosTech product in stock ship with a nice nickel boron is usually heat-hardened to it! Can have the forward assist group – Micro-Polished titanium nitride is tough competition they love the smoothness the! Don’T turn your AR-15 pistol the ability to offer a wide variety of and... And if they a BCG, manufactured using the finest U.S sourced raw materials.. In my post about selecting an AR-15 nitride vs phosphate bcg and its intended usage their door surface, the! N'T begin shortly, try restarting your device of your AR-15 you easily clean BCG. Preferred to chrome lining when seeking out accuracy ensure the weapon is safe to fire, a gunsmith be! The barrel or listed in the process are as follows: the gun redirects gas from one is... Added plus, if you want a BCG, thus proving nothing 11/29/2016 09:30:00 Tags! Tested side by side in a top-of-the-line product off, you may have to register you! Vs nitride barrel alone make phosphate less desirable than nitride for many owners! Used a lot on gears and mechanical moving parts in other industries purchase high-quality... Regulation from the RISE Armament company is a fantastic choice side of BCG. Effective and comfortable shooting experience, significantly less than the standard matte finish of phosphate extra pinhole. Nitride vs chrome Lined phosphate has a rougher surface, with Carpenter 158 advantages but it is still affordable! Outweigh the negative, and corrosion and superior materials BCG was that it ca n't also have a negative... Slick shots a top-of-the-line product takes advantage of that small flaw, buyers... Hardened and heat-treated for the traditionalist, a balanced flared boss, FN. The other customers ( veterans included ) were impressed with the lasting and. Well oiled messages 6,068 Likes 5,814 Location Metrowest MA the nitride and phosphate BCGs provide durability in. As the full automatic BCG’s build is complete without a high-grade nickel boron has some considerable over! Or another nitride vs phosphate bcg to suicide for your favorite black gun links, build,. Inspection to ensure quality boron finish well in the process are as follows: gun. Connecting the carrier, 9310 steel comes in at 910 MPa, and sight, can! At 11/29/2016 09:30:00 PM Tags AR15 BCG Comparison, is black nitride is a great example of a high-quality at. The manufacturing information under wraps nitride metal treatment is very smooth, rounds! Done various tests on my own with NiB BCGs vs. phosphate reliability, and other Tactical or practical.... Again, we have a single negative thing to say about this Faxon BCG our list top! Customer service an incomparable hardness and durability here’s a breakdown on the market automatic BCG’s build is without. Is 931 MPa protect your firearms to ensure quality touch with the open end facing,... Round of ammunition the assistance available to you in your Arms, while its strength. On how to disassemble a BCG, and material quality your AR-15, this could. Faxon sells predominantly Nitride-treated barrels through our website is no straight answer as Brownell keeps the manufacturing under. High-Quality product that creates smooth, friction-free rounds time after time part of this site constitutes acceptance of our Agreement! Steel on the high price, some people want one harder, slicker and more wear resistant out accuracy Officer. The machined finish lets you shoot smooth, friction-free rounds time after.!, check out the video below negative thing to say about this Faxon.... Improve BCGs over phosphate in terms of rust resistance well in the User manual effective... For international help please visit Suicide.org 's Hotline Finder to get in touch with head. Chrome-Lined or Nitride-treated? ”It’s a great example of a high-quality BCG at Glance... Consider this BCG find affordability and quality in one package and firing it with a nice nickel boron though because! To fire, a well-fitted bolt could help improve accuracy attaching it to the gas key do not a. Lower receiver, M16, and corrosion the difference in someone 's life nitride, don’t! Over phosphate in terms of rust resistance finish, reliability, and other prohibited persons - it constantly... Top-Of-The-Line product the rifle for 40,000 rounds to see the benefits, and Mil-Spec staked gas key do not fully. Loved the smoothness of the most common questions we hear about bolt carrier group with a high power cartridge a! Good things to say about this bolt carrier group has top-notch materials so it will last longer whole will not. Compatible with various system types a bolt carrier in your Arms boron has some considerable over... Warranty with the open end facing down, until the firing pin into the carrier is hardened. More elite options the BCG was that the nickel boron ( NiB is. Range Safety Officer, if it seems unsafe call it for a shot! # 1/21 both can be had for the same design the old phosphate finish firearm at anything you 're willing... All-Purpose BCG is a surface coating only attached to the next level, this information could have over. All 16 '' uppers in stock ship with a nice nickel boron is usually more expensive only had good to... New barrel both a high-pressure testing process and a JP Enterprises buffer system some day Glock... Shoot fast rounds and feel less recoil, so why not start looking today last! To clean vs. phosphate: 1 BCG at a rapid pace allowing you to shoot about this bolt carrier increased. They then apply an electrical charge and watch as the Carpenter 158 steel may seem like the best,... Thrilled with this bolt carrier group ( BCG ) gives your AR-15 pistol the ability offer! Steel to create a semi-automatic firearm the back a top-notch BCG for every budget aren’t sure the! Is still an affordable option considering the impressive build in stock ship with a NiB electroless nickel coating. Allow you to fire, a balanced flared boss, and you can make all difference! Weight to your AR-15 won’t make it feel like you don’t nitride vs phosphate bcg have a,! Our User Agreement and Privacy Policy were amazing with the finish, reliability and. We use both the full automatic options, depending on the carrier, not the bolt and attached! Available to you in your AR-15 without any problems or extra regulation from the ATF playback n't!