AR/M16 Bolt Carrier Group – Nitride
Original price was: $65.00.$55.00Current price is: $55.00.
All E2 Armory products are competitively priced and include FREE E2 Armory stickers.
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Description
AR/M16 Bolt Carrier Group – Nitride
Your bolt carrier group (BCG) is the lifeline of your AR-15. 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 E2 AR 15 bolt carrier group works better and provides longer lasting performance for your rifle build.
BCG Includes:
- Bolt precision machined from 9310 alloy; carburized/case hardened & shot peened
- Ultrasonically cleaned and Nitrided
- Extractor, machined 4140 Tool steel alloy, hardened and Nitrided
- Extractor Pin, precision machined and ground AMS6440/52100 Bearing grade steel retaining pin
- Extractor Spring, 5 coil, ASTM Grade A 228 wire stock, stress relieved, Tensile Strength of 393,000 PSI Max, 80 Durometer Per AMS-R-6855 black insert
- Extractor Spring O-Ring, Viton (FKM) Fluoropolymer Elastomer
- Ejector, S7 shock resistant tool steel alloy, hardened, shot peened per ASTM B851/SAE AMS2430, manganese phosphate
- Ejector Spring, ASTM Grade A 228 wire stock, heat treated, stress relieved – Tensile Strength of 376,000 PSI Minimum
- Gas Rings, Steel Corrosion Resistant Per AMS 5906 – X3
- Carrier machined from 8620 alloy, full auto profile, heat treated, ultrasonically cleaned and Nitrided
- Gas Key machined from 4130 chromoly steel alloy, heat treated and Nitrided
- Socket Cap Head Screw, steel, grade 4037 per ASTM, heat treated & manganese phosphate 2x
- Gas Key is installed with Permatex aviation gasket sealer, torqued to 55-foot pounds, pneumatically steaked and break away tests performed to spec
- Cam Pin, precision machined 4340 chromoly steel alloy, heat treated and Nitrided
- Firing Pin, precision machined 8740 steel alloy, heat treated, precision ground & hard chrome plate
- Firing Pin Retaining Pin, carbon steel ASTM A510, heat treated & manganese phosphate
- All material, components and packaging made in the USA
What’s Included:
(1) AR/M16 Bolt Carrier Group – Nitride
E2 Armory is committed to providing the highest quality firearm components that meet all rigorous military specifications while being competitively priced and rush delivered. Our customers are provided products that could be used for the defense of liberty and freedom across the globe. E2 Armory employs only the highest caliber employees that are devoted to continual improvement and bar setting quality. We are excellence.
E2: Distributing Freedom.
Additional information
| Weight | .93 lbs |
|---|
20 reviews for AR/M16 Bolt Carrier Group – Nitride
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Jesse Kriesel –
I just received this E2 nitride BCG it looks decent overall but the bolt only had two gas rings installed. Of the seven BCGs and two spare bolts I have, this is the only one that showed up with two gas rings installed. It didn’t exceed my expectations.
Marc –
Excellent product all the way around. Staking is perfect. Gas rings positioned correctly. Go-No Go head spaced without issue.
Used in a brand new .223/556 AR 7″ pistol setup. Full Break in took about 30 rounds, now with 500 rounds and no problems what so ever.
Shipping time was 7 days from order to arrival.
Thank you e2 for a nice product at a great price.
Jesse Kriesel –
Recently I received this product and it looked pretty good overall. However upon further inspection, there was a slight issue. After some communication they resolved the issue without question. The resolution ”exceeded my expectations” and it is customer service like this that earns respect and consideration for further purchases. Once I get a chance to test it out, i’ll swing back by and let you know how it performed.
Brian Carter –
At first I was skeptical about the quality of this BCG, a little confused with the price too. I was thinking there is no way this is legit. I ordered one and let me tell you I was honestly surprised. I have put a lot of rounds into my AR and I haven’t experienced any issues with it at all. I strongly recommend E2 as a company and this product as a BCG.
ricardo.e.vinuelas –
Excellent budget BCG best one for the money and cheapest around get them while you still can. My two units work perfectly buddies also working fine just always out of stock. Get on mailing list.
Frank Bonazza III –
Great price, and quick shipping. I purchased this BCG for my 7.5” 300 blackout pistol build. I haven’t had time to get to the range due to the ammo shortage but I will post my full review once I can.
campbell.seth –
I bought 4, they were individually packaged in some type of shrink wrap. Staking looks very good. Bolt is marked HPT/MPI on all and no E2 logo or any other markings. 100% nitride finish on bolt/carrier/gas key. Gas ring tension is excellent, all rings present. Only 1 sticker came in the box.
cgadd –
Ordered 2, received fairly quickly, well packed. Nice nitride finish, staking looks good, very smooth finish. they look flawless, and run great.
Frank Bonazza III –
This is my second BCG I’ve ordered from E2. The first was for my 300 blackout pistol build and it’s been flawless thus far, and this latest one is for a 5.56 rifle build for my wife. Great price, and these BCG’s work well. I’ll probably order another, as a spare just in case something happens down the road…
michael.lackey –
First don’t pay for expedited shipping paid for 2 day still took 7 to receive it. Not going to blame E2 for that ups has really sucked lately.
Bolt was processed in 24 hrs
Coating is flawless and for those of you who care about these items it was there nice etch job and a sticker was included
Let’s talk about function
Broke it in with 30 rounds then ran my slide fire for 120 rounds
Then sighted in my new optic and keyholed 30 rounds on top of each other
This thing preformed just as good as any other BCG I have ever bought and it’s made in the USA I like it you’ve earned a life long customer can’t wait for your uppers and lowers to come back in stock I seriously wanna put them to the test I have high hopes
bdornbusch2 –
The good: It works. The gas key is staked correctly. It’s the cheapest BCG on the market. It’s probably priced appropriately. The bad: I rolled the dice on this for an 11.5″ truck gun build. The first thing I noticed was that the nitride finish had 2 faint bald spots on the bottom of the bolt carrier body. It wasn’t a big concern initially as it wasn’t on a wear point. The next thing I noticed was very prominent tool chattering along the bolt carrier. Took the group apart and the bolt, extractor and firing pin look GTG. Dropped it into my new toy and hit the range. Pulling back on the charging handle made an annoying grinding/whirring sound, very much like the DJ record scratching they did in the 90’s. Put a little over 100 rounds through the gun to start breaking it in. The first and second magazines fed flawlessly, the third and last had 4 failures to feed. I started diagnosing the problem and ruled out the gas system, buffer spring, and buffer weight. Switched out the BCG with a blem Toolcraft. Gun ran fine. Switched back to this BCG and the gun ran fine again. Turned out to be an ammo problem with corroded and old ammunition. Still, I inspected this BCG more carefully and found that both the top and bottom rails have even worse chatter than the rest of the carrier body. That’s what caused the noise. The nitride finish had also worn completely off parts of the rails in contact with the upper receiver. I worry that the roughness of these rails will wear the anodizing off my upper receiver. The good thing about the poor nitriding was that I could run a polishing mandrill over it on my drill press (at the lowest setting, going very slow) and it smoothed out the rails. Put it in the parkerizing tank for my hunting rifles, and now the rails have a decent phosphate finish. However now I don’t know how that affected the tolerance between the carrier and the upper receiver. It seems to be okay.
Bottom line is this BCG will work for you if you are a halfway decent “bubba” gunsmith. Kind of a fun little project really. After some work, it will suffice for my truck gun. At the price of $64 vs. a $99 toolcraft blem elsewhere, I feel it’s worth it if you have the time and tools to fix it up. I wouldn’t use it for a precision rifle, but for a standard carbine, SBR, or pistol, it could work. Otherwise cough up the extra dough for a Toolcraft. I may have received a lemon, but my complaints seem pretty consistent looking at the reviews. My advice for the company is to fix your machines and send your QC manager to the optometrist.
mjhines3 –
BCG was vacuumed sealed in the box. Looked pretty good for a $64 complete BCG. I shot 40 rounds through my 10.5 inch AR15 pistol and it worked flawlessly. No issues at all.
vaboomoon –
I use E2armorys carrier groups in all of my builds. Their service has been excellent. Anytime I’ve had a problem it is always solved super fast. All of their products are great!!!
James Carmack –
This is my first time doing business with this company and the bolt carrier group is very good quality and I am putting it through the works and it is preforming perfectly
Benjamin Pineda –
This bolt carrier group looks great, I just finished installing it in my new build but haven’t yet taken it to the range. I’ve seen many good reviews out there online regarding this particular BCG so I hope it will work great. As far as the ordering, the website is easy to navigate, delivery is fast and customer support is just wonderful.
Butch Cooper –
Dale –
Haven’t had a chance to run this BCG however for the price I am very impressed with the quality and don’t see anything that I feel will cause issues in performance. Nice nitride finish with minimal tool marks. E2 logo is a nice touch! Will see how it holds up long term. Packaged extremely well in stretch wrap and a foam lined box. Fast shipping. Great customer service with notifications of order status. E2 Armory has been added to my short list for future build needs.
WALTER –
Good product at a great price
William Lehr –
Fast shipping
Anonymous –