Brownells 75th Anniversary - A Shooting Heritage

Weight-Saving Profile For Enhanced Maneuverability; Mid-Length Gas Sytem For Added Reliability

These carbine barrels are hammer forged for Spike’s by FN, and are chrome lined and finished to M-249 specs for durability. Magnetic particle inspected (MPI) and high pressure tested (HPT) to ensure superb quality. Both models drilled for a mid-length gas system for extra reliability, with a slimmed-down profile between the barrel extension and gas port to save weight. Barrel extension has M4 feed ramp cuts. 16" is slimmer at muzzle than standard carbine barrel. 14½" Optimum provides even more weight savings and minimum length for fast deployment and quick maneuverability.

AR-15, Issue:11, Page:020
Big Book Catalog, Issue:70, Page:019

SPECS: Chrome-moly-vanadium steel, manganese phosphate finish, matte black. Muzzle threads: ½"-28 tpi. Chambered in 5.56 NATO with 1-7" twist rifling. 16"- 16½" (40.6cm) O.A.L. Barrel tapers from .680" to .655" (17.2mm to 16.6mm) under handguard. .750" (19mm) O.D. at gas port, .650" (16.5mm) O.D. at muzzle. 26.5 oz. (751 g) wt. 14½" Optimum -14½" (36.8 cm) O.A.L. .660" O.D. under handguard, .750" O.D. at gas port and .645" O.D. at muzzle. Weight: 24oz.


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Cartridge: 5.56 mm NATO

Barrel Weight: 1.715 lbs

Contour: Lightweight

Finish: Black

Length: 16

Gas System Length: Mid-Length, ...

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Cartridge: 5.56 mm NATO

Barrel Weight: 1.4 lbs

Contour: Optimum

Finish: Black

Length: 14-1/2

Gas System Length: Mid-Length, ...

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