Details
Details
The Faxon Firearms 5.56 M16 Bolt Carrier Group with Nitride finish delivers robust reliability for AR-15 rifles using an M16 profile. Built from premium 9310 tool steel and treated with salt-bath nitride, it offers superior corrosion resistance, reduced friction, and lasting surface hardness. Every component meets or exceeds MIL-SPEC standards with heat treatment, shot peening, magnetic particle inspection, and polished superfinishing for smooth and dependable cycling.
The bolt lugs are precisely chamfered, and the assembly includes a spring, insert, crane O-ring, and S7 extractor. Its full-auto compatibility and a staked gas key using grade 8 fasteners ensure consistent, fail-safe performance, round after round.
Features:
- 9310 tool steel bolt for exceptional strength
- Salt-bath nitride coating on carrier and bolt for corrosion resistance and reduced friction
- MIL-SPEC heat treatment and shot-peening ensure structural durability
- Magnetic particle inspected components for flawless material integrity
- Chamfered bolt lugs for smooth cycling under pressure
- Includes spring, insert, Crane O-ring, and S7 extractor for ready-to-install operation
- Superfinished carrier body offers slick operation and reduced fouling
- Full-auto rated M16 profile with forward assist compatibility
- Staked gas key using grade 8 hardware delivers lasting alignment and reliable service
Specifications
California Prop 65 warning
WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.Ratings & Reviews
10 reviews
Flawless Victory
by Christopher -
I've just about swapped all of my BCGs on my and my wife's rifles. All have performed perfectly. She noted how much easier it is to clean her bolt and parts now, the nitriding just makes that #$@! simply wipe off. The gas keys are staked nicely and extracts just as it should. The only time it hasn't done its complete job is when the monkey behind the trigger didn't adjust the gas settings properly whilst he shot suppressed. BAD MONKEY!! Other than that, I've loved Faxon's barrels and BCGs - they've all performed wonderfully.
Faxon bcg
by Dylan -
To start I've had about 7 of these bcgs on the ones I've had fit and finish were excellent gas key properly stacked and aligned I didn't have any tool marks but the firing pin retainer is too stiff to be inserted properly so I replace that. Other than that they last me about 6-8,000 rounds before the bolt head starts breaking in a sbr that's acceptable. On a fee handloads I did blow a few primers no damage to the bolt other than cleaning the metal off
gas key staking
by Blake -
works great, gas key staking is purely cosmetic. I reached out to faxon and they said that's normal
Poor QC
by Ash -
Seemed to have lathe marks all over the bolt carrier. Staking was nearly non-existent on the gas key. The firing pin hole was strangely large with lots of wiggle compared to other 556 bolts I have. I returned it for a refund and bought a different brand from Primary Arms. 5 star review for PA's return policy.
What Staking?
by Ash -
Almost nonexistent gas key staking. Just a tiny dimple to the point it looks entirely superficial and not actually a functioning stake. Returning this and buying a different brand.
faxon bolt
by jimmy brown -
excellent bolt carrier
Too Many Issues
by Scott -
This Faxon BCG had some serious issues:
1. Gas key was misaligned
2. Approximately 0.009” clearance between bolt tail and carrier. Way too much.
3. Very rough finish inside carrier in gas ring area.
The BCG would usually extract and eject the first round but never pick up the second round. Swapped BCG into other gun and that AR had the same problems. I return the Faxon BCG and bought a Microbest. The rifle runs fine now.
Primary Arms customer service was great.
Nice Product
by PMD -
Finish is exceptional. Works flawlessly and was priced very good.
We are happy to bring you great products at very good prices.
faxon bcg
by Gunther -
very nice finish, haven't shot it yet but but no issues so far.
Great but has a flaw. May be just mine.
by Jason -
Very nice finish. Great looking bcg. Haven’t shot it yet. However.... The cotter pin that holds the firing pin in pertruds out of the hole and doesn’t allow the bcg to fit inside the upper. You can force it in but it’ll rub threw the upper. Disappointed.... so besure to check yours if you buy.