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At 10.3", this is the shortest version of the Brownells A1 profile AR-15 barrel assembly.
It matches exterior contours of commonly used carbine barrels from the 1960s through the 2000s. The 10.3" Retro A1 barrel is machined from hardened 4150 steel, MPI inspected to detect hidden flaws, and given a hard black phosphate finish. It is chambered for 5.56 NATO ammo, with 1-7" rifling in the nitride bore.
- Ordnance-grade 4150 chrome-moly carbon steel
- Durable QPQ finish
- 5.56 NATO chamber with 1-7" twist rifling
- Uses CARBINE LENGTH gas tube
- .070" gas port
- .070" gas port
Muzzle threads: 1/2-28" TPI. A standard carbine barrel extension is already installed.
Also installed: 0.625" gas block/front sight base (F marked) with bayonet lug, sight post, detent, spring, sling swivel, Delta ring, barrel nut, weld spring, snap ring, and round handguard cap.
All NFA rules apply.
Specifications
- Manufacturer:
- Brownells
- Category:
- barrel
- Caliber:
- 5.56x45mm NATO
- Platforms:
- AR-15
- Interfaces:
- Muzzle thread: 1/2-28
- Length:
- 10.3"
- Estimated velocity:
- 2,320-2,695 fps
- UPC:
- 050806003712
- MPN:
- BABR557460M
- Required Component:
- Yes
Estimate only. Based on caliber + barrel length bucket. View details
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