Patented 7.62x39 Enhanced Bolt Carrier Group Buffer with Buffer Technology

Looking for the best Gas Piston System. Look no further! Black Rifle Arms has developed the most innovated Gas Piston Systems, best bolt carrier groups, enhanced firing pins, extended firing pins, gas piston, piston, piston uppers, 300BLK Piston Uppers

Description
Product Features
Customer Reviews
Questions and Answers
Warranty

We Set Out To Improve Upon Existing Bolt Carriers....

TO LEARN MORE ABOUT THE FOLDING STOCK ADAPTORS FOR LAW TACTICAL & SYLVAN ARMS FOLDING STOCKS PLEASE CLICK HERE

BOLT CARRIER:

BCG Weight: 10.76 oz.
Bolt Carrier Material, 8620
Key Material, 4130
OCKS Screws (Optimized Carrier Key Screws)
Bolt Carrier EXO Nickel Boron (NiB) Coating by UTC Coatings
Bolt body produced from AISI 9310 VAR (Vacuum Arc Remelt), the highest standard bolt material made

EXO NiB Coating by UTC Coatings
Machined completely in one operation; this eliminates tolerance and repeatability issues that arise from the multiple fixturing processes used by other manufacturers
Enhanced Design for utmost reliability
Tightly controlled proprietary heat treat process to accurately control cast depth and core hardness

Extractor produced from MIL-S-5000 steel and vacuum hardened
NSCW Crane Division extractor upgraded with 5 coil spring, and plunger
Cam Pin, Melonite QPQ
Firing Pin Retaining Pin
Standard Size Integrated Polymer Buffer:

Eliminates metal on metal contact
Eliminates contact between the hardened steel carrier, aluminum receiver extension and buffer
Eliminates hardened steel carrier as it transitions between upper and lower receivers
Self-lubricating, shock-absorbing and has seven times the abrasion resistance of carbon steel
Reduction in felt recoil and vibration

PLEAE READ ALL INFORMATION PERTAINING TO OUR BOLT CARRIERS AND DISCLAIMERS:

AR-15 bolt carriers are not compatible with AR47 or any rifle that takes AK Magazines.
Bolt Carrier due to the polymer buffer is not compatible with most folding stocks.

It is compatible with Shield Arms Folding Lowers
Compatible with Law Tactical Folding Stock with our Proprietary Folding Adaptor, Part # 251015
Compatible with Sylvan Arms Folding Stock with our Proprietary Folding Adaptor, Part # 2510152

JP Silent Capture Spring is not compatible with our bolt carriers. In order to use JP Silent Capture Spring, the end-user would need to make modifications to the carrier's integrated buffer.
Armaspec Stealth Recoil Spring is not compatible with our bolt carriers and bolt carrier polymer buffer can not be modified to work.
Some off-the-shelf rifle cleaning solutions such as Hoppe's #9 can react negatively with NiB finishes. Since our carriers have nickel-based coating these should not be used on NiB/EXO coated products. Always refer to the manufacturer's recommendations before use on NiB/EXO coated products.
Our Select Fire Customers have stated carrier bounce has been eliminated due to the polymer base buffer.
We have run select-fire and have not experienced carrier bounce since the introduction of the integrated polymer base buffer.
Patented buffer technology has been in use since 2010 with over 20,000 rounds without needing to replace the polymer buffer; however, if one damages the polymer buffer it is easily replaced.

Rating Snapshot

Select a row below to filter reviews.

Average Customer Ratings

5.0

Quality, quality, quality.

When you hold this bolt carrier group in your hand, you know you are holding a quality product. I compared this BCG with one from Fail Zero and the FZ cannot hold a candle to the fit and finish of the BRA BCG. The finish, compared to the FZ, has a glass like smoothness with a mirror finish akin to chrome plating on high end wheels whereas the FZ looks blotchy and is not as smooth. The gas staking on this BCG is also very well done compared to the FZ. The only thing keeping me from giving this a full 5 star review is that I wish the cam pin, bolt, and firing pin were also EXO coated. However, that is not a deal breaker for me and I plan on only buying these BCGs for my future builds.

Reviewed by: Tuan Le from Orange County CA on 8/6/2014

7.62x39 Bolt

The only word is awesome. I put this Bolt in a 7.62x39 upper and after trying 10 different types of ammo from cheap to high dollar custom loads was able to shoot a .49 inch 5 shot group at 100 yards with Winchester 123gr sp. After the guys at the range saw the group, they all wanted to know what components I used, and were really impressed with the quality of this bolt. Great product, and I am planning on buying several more in different calibers for future builds.

Reviewed by: Rafael from San Antonio, Tx. on 11/11/2015

Great BCG All Around

I built a Colt Sporter Rifle in 7.62 and was looking for something to fulfill my need. I originally went with a Radical Arms BCG that completely sucked. It was on sale for $100 and had great reviews so I took a chance. After stove piping every round (faulty extractor) I sent it back and looked for something of higher quality. I came across this one and didn't have a lot of knowledge of BRA but was willing to take a chance. Once the unit arrived, I manually cycled a few rounds through it before wasting time and money (ammo/range fees) shooting at the range. Everything went smoothly with no hiccups. I took it to the range and put 100 rounds through it with ASC mags and it ran flawlessly. My only gripe is that it went on sale for $20 less a week after I received it. I guess that's just the way the cookie crumbles. BTW, I wouldn't think of taking a star away for that, just adding it to the story. I would buy again and recommend to anyone who was in the market.

Reviewed by: (Verified Buyer) Kedian Taborn from Charlotte, NC on 11/21/2015

Very fast service!

Just ordered the 7.62X39 BCG and BBL. shipped in less than a week!

Reviewed by: Randall from Temecula, CA on 1/15/2014

Simply Incredible!!

I think the only thing that surpasses the quality and craftsmanship of this BCG is the customer service I received from Charles and Teresa.. And that is really saying something!! Because this really is an Incredible product!! After being a machinist for over 25 years you not only get a feel for quality but you can really see it in the products from Black Rifle Arms!! I've been building this rifle for over a year and being on a budget it has made me to shop for the best I could afford.. I could have spent less but that's what I would have had!! I also purchased one of their Ballistic Advantage barrels.. I believe the BCG and Barrel from BRA is the heart of this build!! From the first round fired in a Lead Sled to the 100th round on Saturday and using C Products Defense Mags, this rifle preformed and acceded my expectations!! I can't say enough about the products and the Great folks at BRA!! They have a customer for life!!

Reviewed by: John Wade from Dunnellon, FL. on 6/1/2015

Awesome BCG

I just received my 7.62x39 BCG in the mail this week and took it out for a test drive in my brand new AR47 build. I shot 150 flawless rounds without a single issue or stoppage, even during a mag dump. It's a perfect companion for my Aero Precision M4E1 and Green Mountain M4 barrel. This is now my favorite rifle! Excellent design and quality. Thanks!

Reviewed by: djhughes017 from Pasco, WA on 7/11/2016

I purchased this BCG after utilizing the black rifle bolt and enhanced firing pin combos. I use this item in a 20" AR and I am very satisfied with its performance. Quality built and ability to cycle all types of ammo is also a plus!

Reviewed by: (Verified Buyer) JOHN FLOYD from South Carolina on 7/26/2014

Mr.

I purchased the 7.62 bolt and installed it in a new upper. I have tried all types of 7.62 ammo from FMJ to Round nose; steel case and brass All ammo tried so far runs perfectly. This is a high quality part.

Reviewed by: jason b from PA on 9/20/2016

Great product

I purchased this bolt carrier group with the enhanced firing pin and installed it in a 7.62x39 upper. When I received it, the BCG looked great, the coating just gleamed. I was impressed by it's fit and finish. I assembled the AR and am pleased to say, after adjusting the gas block, that it cycles reliably. I also purchased C products 30rd mags from black rifle and they feed properly, as well.

Reviewed by: Tim Turner from Las Vegas on 5/11/2017

7.62x39 bcg

bought the 7.62x39 bcg a few months ago and shot my ar twice with the new upgrade,definitely worth the money great product well made, no issues. thank you u guys . keep up the good work. wondering if you guys will make tin finish bcg?

Reviewed by: Giancarlo Robles from anaheim ca on 7/2/2017

Waiting to purchase another

My 4th AR will close to duplicate my second that has this BCG. Looks precision machined and runs well.

Reviewed by: Mike Witzgall from Northfield on 11/16/2021

armorer/builder/toolmaker

I took a chance on getting three of these before ever using one, based on the reviews I saw here. LOVE LOVE LOVE them. Plug n Play on Anderson lowers and Hardened Arms uppers. The finish is great, and I like what I see, or don't see for machining marks. I was sceptical about the buffer, but it is a few thousandths bigger than the carrier, and it will definitely save some wear and tear. I will be back for my next build.

Reviewed by: (Verified Buyer) Raymond from Milwaukee, WI on 11/1/2018

you get what you pay for

welp, i have ordered a nickel boron bolt before, from palmetto for a 556. i talked to Charles, for quite some time and took a leap of faith, as he was trying to help me figure a problem, with a competitors product. this thing, compared to palmetto's bolt, no comparison. im in awe. it is obviously smoother just from drawing back the charging handle. no lube on it, buttery smooth. now i sprayed it a tad after initial use, which it ran flawlessly, even though my factory bolt didnt! and it ran great, wet or dry. i cant say whether or not the buffer helps in smoothness, i feel as though it does, and logically it should, but unless your paying attention, you probably wont notice. in the end, just buckle down and order it, once you have one, youll swap out every gun you own!

Reviewed by: Perry from Lucas on 8/28/2018

View all Q&A

Q: Is this a right side charger for 7.62 ar 15?

Asked by: Isaiah - 6/5/2026

A: The BCG ejects spent cases to the right hand side like a mil-spec AR-15. If the question doesn't answer your question please give us a call.

Answer provided by: Administrator (6/7/2026)

Q: Will this fit the Radical arms AR47 with 10.5 inch barrel?

Asked by: Logan - 4/8/2026

A: Our bolt carrier is for any mil-spec AR-15 lower that takes AR-15 magazines. If your Radical Rifle is an AR-15 7.62x39 that takes AR-15 magazines for the 7.62x39 ammunition our bolt carrier will work. If Radical is a true AR47 that takes AK magazines our bolt carrier is not compatible.

Answer provided by: Administrator (4/9/2026)

Q: I have a 7.62x39 ar-15 with a frt and a h3 buffer that is suffering from light primer strikes.what is recommended for me to fix that issue?

Asked by: Chad k - 4/2/2026

A: Are you already using an enhanced or enhanced plus firing pin. That is the cheapest way to test at this time, if not we have seen great results with our enhanced bolt carrier with our patented buffer technology that helps with carrier bounce which will cause light strikes. If you would like to speak to our tech guy please call him at 386 410 5162, and ask for Charles.

Answer provided by: Administrator (4/9/2026)

Q: When selecting the Enhanced Plus firing pin upgrade, does it include the standard Enhanced firing pin as well? I’m trying to figure out if I will receive both firing pins automatically with the upgrade, or if I need to add the other firing pin to my order separately. I’d like to have both on hand in case I’m using different types of ammo in the future.

Asked by: Josh - 2/18/2026

A: It was you could choose which firing pin, but I just went in and amended it so you can add both with a small discounted upcharge of $6.99 so its bundled and gives you a little bit of savings. Hope this helps. If you are on the page you will need to refresh to see the changes.

Answer provided by: Administrator (2/18/2026)

Q: Will this BCG work on a side charging rifle ?

Asked by: Memo - 12/16/2025

A: It can, but if the AR-15 side charger attaches to the BCG then it would have to be modified to accept the charging handle and we do not modified for such use so it would have to be done by somebody that does that type of work. Does not work with any 7.62x39 that take AK mags.

Answer provided by: Administrator (1/6/2026)

Q: Will this work in bear Creek upper for 762x39/12.7x42

Asked by: Krystal - 9/8/2025

A: YEs this is will work with BCA AR 762x39/12.7x42

Answer provided by: Administrator (9/25/2025)

Q: I wanted to ask if this BCG will work with a 12.7×42 upper receiver in an AR-15 or would I specifically need a different BCG

Asked by: Joshua Reyes - 8/1/2025

A: Yes if your upper is designed around the 7.39x39 bolt assembly and Bolt Face is .125" recess this bcg will work fine.

Answer provided by: Administrator (8/1/2025)

Q: Will this BCG work in an AR47?

Asked by: Kenny - 6/25/2025

A: No because the bolt carriers for a AR47 are specc'd to accept AK magazines.

Answer provided by: Administrator (7/18/2025)

Q: Will this fit PSA KS-47 Upper?

Asked by: Joseph Luongo - 5/31/2025

A: No, our bolt carriers are AR-15 bolt carriers, and; therefore, will not work with AK magazines. Bolt carriers and Bolt Assembles that take AK mags have different specc's to clear the AK magazines.

Answer provided by: Administrator (6/1/2025)

Q: Are you using a modified 5.56 AR15 bolt or is a true AR10 7.62 heavy walled wall bolt and extractor

Asked by: Donald R Wargo - 2/18/2025

A: The 7.62x39 is on the AR-15 platform there for utilizes an AR-15 Bolt Carrier therefore takes a AR-15 size bolt. You can't use an AR-10/.308/7.62x51 bolt in an AR-15 platform. More about our AR-15 7.62x39 bolt assembly:
-Bolt Face is .125" recess
-Bolt body produced from AISI 9310 VAR (Vacuum Arc Remelt), the highest standard bolt material made
-Melonite
-HTP/MPI test, our material is checked prior to machining by our supplier of 9310
-Machined completely in one operation; this eliminates tolerance and repeatability issues that arise from multiple fixturing processes used by other manufacturers
-Enhanced Design for utmost reliability
Tightly controlled proprietary heat treat process to accurately control cast depth and core hardness
-NSCW Crane Division extractor upgraded with Viton® O-ring
-5 coil spring, and plunger
-Extractor produced from MIL-S-5000 Steel
-Extractor Produced from MIL-S-5000 Steel
-Vacuum Hardened
-Phosphate
-Machined

Answer provided by: Administrator (2/21/2025)

Questions about this item? Ask here.

Black Rifle Arms has a Limited Lifetime Warranty on our Bolt Carriers against manufacturing defects.

Modification(s) or alterations to any part of Black Rifle Arms Bolt Carriers VOIDS warranty and will be non-refundable, nor replaced

Small Parts that make up the bolt carrier group are NOT UNDER WARRANTY as they are known parts to fail under normal use, these parts include:

Bolt Assembly/Extractor
Cam Pin
Firing Pins
Retaining Pin

See more under our WARRANTY PAGE:

Bolt Assemblies and Extractors: due to the bolt face/extractor designs they have a much higher failure rate due to the bolt face dimensions and thickness bolt assemblies/extractors. While we do designed our bolts and extractors with beefier spec's there are certain things that expediate bolt/extractor failures. Some examples but not limited to:

Tula Ammunition and Red Army are extremely hard on 7.62x39 bolt assemblies and extractors. We have tested these particular brands on many occasions and have found that cartridges tend to get stuck and/or casings do not shrink properly which causes undue stress on the extractors and the bolt lug next to the extractor. This will contribute to premature failures of these parts.

Overgassing! Overgassing is another issue we see most common in premature bolt assemblies and extractor failures. We recommend shooting through a chronograph to get proper cyclic rates. If you are overgassed then to slow down the bolt carrier you can use a heavier buffer such as an H2 to get proper cyclic rates which allows for the casing to shrink further before extraction takes place thus reducing the stress of the bolt assembly and/or extractor.

Barrel Extensions with a large wide single feed ramp with no middle lug does not support the bolt assembly properly.

Due to the nature of this caliber and thinned out bolt/extractor consumers understand that this caliber has a high failure rate to the extractors and bolt lugs and because certain aspects can contribute to premature failures outside of our control that put undue stresses on the extractor/bolt lugs we will not warranty bolts and extractors.

AR-15 / M16 7.62x39 Extractor Kit

$24.99

In Stock

(3)

Add to Wish List

Add To Cart

AR-15 7.62x39 | 5.45x39 Enhanced Firing Pin

~~$14.99~~ $11.99 Sale

In Stock

(38)

Add to Wish List

Select Options

C Products Defense - DURAMAG 7.62x39 20rd Magazine Black-T Finish

$28.99

In Stock

(5)

Add to Wish List

Add To Cart

C Products Defense - DURAMAG 7.62x39 28rd Magazine Black-T Finish

$29.99

In Stock

(2)

Add to Wish List

Add To Cart

C Products Defense - DURAMAG 7.62x39 30rd Magazine Black-T Finish

$29.99

In Stock

(4)

Add to Wish List

Add To Cart

C Products Defense - DURAMAG 7.62x39 10rd Magazine Black T Finish

$21.00

In Stock

(3)

Add to Wish List

Add To Cart

[history_item_name]

[ITEMPRICE] ~~[ITEMPRICE] Original price~~ [ITEMSALEPRICE] Sale

Clear

M16 AR-15 7.62x39 Enhanced Bolt Carrier Group with Buffer Technology

Choose Options

Average Customer Ratings

Related Items

Recently Viewed Items

M16 AR-15 7.62x39 Enhanced Bolt Carrier Group with Buffer Technology

Choose Options

Related Items

Recently Viewed Items

Mailing List