Colt magnetic particle inspected barrels, NO gas tube or flash hider, muzzle threaded 1/2x28. M4 Gov't profile barrel with M4 feed ramps, extension, barrel nut and chrome bore (1 in 7 twist). Colt Part #: SP64669

Factory Colt M4 profile, 14.5 inch, 5.56x45mm NATO, carbine length gas system barrel. Complete barrel assembly features M4 feed ramp, barrel nut, fixed front sight tower with sight post, and is threaded 1/2-28 for your choice of muzzle device.

Explore the Colt SOCOM 14.5" barrel: durable, precise, military-grade with custom options like Surefire muzzle devices & NOS barrels. MPN: SP64669.

Now, you can get a genuine Colt-produced barrel for your M4A1 carbine clone. Each Colt M4A1 AR-15 Barrel, chambered in 5.56 NATO, features six-groove rifling with a 1:7-inch rate of twist. The barrels include M4-style feed ramps and have a chrome lining that prevents corrosion.

The Colt M4 14.5” 5.56mm Barrel Assembly with Fixed Front Sight is a reliable and durable option for your AR-15 build. Crafted from chrome moly steel and featuring a chrome-lined bore, this barrel offers exceptional accuracy and longevity.

Now, you can get a genuine Colt-produced barrel for your M4A1 carbine clone. Each Colt M4A1 AR-15 Barrel, chambered in 5.56 NATO, features six-groove rifling with a 1:7-inch rate of twist. The barrels include M4-style feed ramps and have a chrome lining that prevents corrosion.

Now, you can get a genuine Colt-produced barrel for your M4A1 carbine clone. Each Colt M4A1 AR-15 Barrel, chambered in 5.56 NATO, features six-groove rifling with a 1:7-inch rate of twist. The barrels include M4-style feed ramps and have a chrome lining that prevents corrosion.

Colt factory new 14.5" M4 barrel FSB. Comes with barrel nut, hand guard cap, front sight post and M4 barrel extension. Roll mark: Colt's cage code.

Authentic Colt 14-1/2" M4 profile barrel, with FSB - CAGE Code Stamped The real deal 14.5" Government profile barrel from Colt. What else can we say? Features. Colt Factory Barrel (new or take-off) 4140 Chrome-lined Chrome-Moly Steel Alloy; Magnetic Particle Inspected, High Pressure Tested; 1/2"-28 threaded barrel (standard for 5.56mm) CAGE ...

The Colt AR-15 Barrel features a true 5.56x45mm NATO Chamber for use with both commercial and military surplus ammunition, while the 1 in 7" Twist Rifling is capable of stabilizing light to medium weight projectiles of up to about 77 grains. In 1963 the AR-15 and M16 5.56mm automatic rifles "made Colt the small-arms sensation of modern warfare".