This highly accurate Windham Weaponry .300 Blackout Caliber Barrel Assembly is 16” in length and turned in a medium profile. The assembly comes complete with the Barrel Extension, WW Free Float Handguard Barrel Nut, an installed Low-Profile Gas block and Gas Tube, and A2 Birdcage Flash Hider. The muzzle is threaded 5/8” x 24 T.P.I. to accept a wide variety of flash hiders or muzzle brakes and is finished with an 11-degree target crown to enhance accuracy. Machined from 4150 Chrome Moly Vanadium 11595E Steel, this quality barrel is Chrome Lined in both the Bore and Chamber for prolonged wear resistance and ease of cleaning. A Black Manganese Phosphate finish offers protection against rust and corrosion. Rifling is 1 turn in 7 inches – right hand twist – with 5 lands & grooves in the “5R” style of rifling – for optimum accuracy with all varieties of .300 Blackout ammunition. This assembly includes a caliber specific complete bolt as well. All top-quality Windham Weaponry parts – made in the USA.
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