Faxon Match Series 16" 1:3 8.6 Blackout AR-10 Barrel
16" 1:3 twist 8.6 Blackout AR-10 barrel in salt bath nitride with 5R rifling and an M18x1.5 muzzle thread; the no-NFA length for a semi-auto build.
- Price
- $306
- Brand
- Faxon Firearms
- Category
- Barrels
Featured in
Features
- •16" length
- •8.6 Blackout
- •1:3 twist rate
- •Carbine-length gas system
- •Salt bath nitride finish
- •M18x1.5 muzzle thread
- •AR-10 / DPMS pattern
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Faxon Firearms Match Series AR-10 Threaded Barrel 8.6 Blackout 16 inch Flame Fluted Carbine Length 1-3 Twist M18x1.5 RH Salt Bath Nitride Black
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Overview
The Faxon Match Series 16" 8.6 Blackout barrel is the no-NFA length for building a semi-auto 8.6 AR-10. At 16 inches it clears the federal rifle barrel minimum, so the finished rifle needs no SBR paperwork. It carries the 1:3 twist that defines the cartridge, the extreme rate required to stabilize long, heavy .338-caliber subsonic projectiles at velocities below the sound barrier.
8.6 Blackout uses the .308-family case head in a large-frame host. That differs from .338 ARC standard-lower hosts, which use a maker-specified Grendel-family bolt or BCG and an independently specified magazine. Pair this barrel only with the large-frame upper, BCG, gas system, and magazine pattern documented for the exact host.
The barrel is salt bath nitride finished with 5R rifling. The muzzle is threaded M18x1.5, which is Faxon's 8.6 convention and differs from the 5/8x24 that Ballistic Advantage uses on its 8.6 barrels. Confirm your suppressor mount or muzzle device matches M18x1.5, and remember the bullet is .338 inches, so a .30-caliber suppressor is not rated for it; thread on a .338-rated can like the SilencerCo Hybrid 46M.
Key Features
- 16" length clears the federal rifle barrel minimum with no NFA paperwork
- 1:3 twist stabilizes the heavy subsonic .338 projectiles 8.6 Blackout was built around
- Drops into a standard AR-10/DPMS build on a conventional .308 bolt face
- Salt bath nitride finish with 5R rifling
- Carbine-length gas system
- M18x1.5 muzzle thread for an adapter or a matched .338-rated suppressor
Pros
- +16" rifle length avoids NFA paperwork entirely
- +1:3 twist is correct for the full 8.6 Blackout subsonic load range
- +Uses the standard .308 bolt face, no dedicated bolt required
- +Nitride finish resists throat erosion under sustained suppressed fire
Cons
- −M18x1.5 thread differs from the 5/8x24 used by some 8.6 barrels; match your can
- −Stripped barrel; you supply the upper, BCG, gas block, gas tube, and handguard
- −8.6 Blackout ammunition is newer and pricier than .300 Blackout
- −16" is longer than the cartridge needs for pure subsonic work
Detailed Specifications
- lengths
- 16"
- chamber
- 8.6 Blackout
- Finish
- Salt bath nitride
- twist
- 1:3
- grooves
- 5R rifling
- gasSystem
- Carbine-length
- muzzleThreads
- M18x1.5
- pattern
- AR-10 / DPMS
- bolt
- Standard .308 bolt face
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Add the Faxon Match Series 16" 1:3 8.6 Blackout AR-10 Barrel to your build and see how it enhances your platform.