AR-15/M16 M4 BARREL

Stripped, M4-profile 16" barrel delivers features you expect to find on a premium-grade rifle at a remarkably economical price. Machined from ordnance-grade 4150 chromium-molydenum alloy steel for exceptional strength, and magnetic particle inspected (MPI) to ensure there are no internal flaws in the metal before application of the durable, heavy-duty matte black manganese phosphate finish for superb resistance to corrosion and surface abrasion. Chambered for 5.56mm NATO, with a 1-7" right-hand twist cut rifling in the chrome-lined bore. Includes pre-installed barrel extension, with M4 feed ramp and locator pin. Gas port is drilled and muzzle is pre-threaded to accept ½"-28 tpi accessories.

SPECS: 4150 chrome-moly carbon steel alloy, manganese phosphate finish, matte black. 16½” long, .640” O.D. under handguard, .750” O.D. at gas port position, .700” O.D. at muzzle. Chambered for 5.56mm NATO. 1-7” twist.