BCM Barrel And Upper Combo




Expect nothing less than professional grade weaponry from BCM. The Bravo Company Manufacturing 16″ 5.56 NATO Barrel begins with durable 41V50 chrome moly vanadium steel. This MIL-SPEC steel is stronger and will outlast most materials found in the commercial market. These barrels are crafted through cold hammer forging. This process produces the most accurate, longest lasting barrels available with a more consistent chamber and bore. The chamber and bore are chrome lined adding protection against fouling and corrosion ensuring a longer barrel life with less time spent maintaining and cleaning.

A 1:7 twist rate ensures that this barrel can stabilize heavier rounds preferred by most professional infantrymen for their superior ballistics. M4 feed ramps increase reliable feeding while dimpling at the gas seat allows precise gas block installation. All BCM barrels are proof loaded to 70,000 psi and then magnetic particle inspected to detect any possible flaws in the barrel surface.
Cold hammer forged
Chambered in 5.56 NATO with 1:7 twist rate
1/2×28 thread pitch
41V50 chrome moly vanadium steel Govt. profile barrel
Chrome lined bore
Manganese phosphate finish
High pressure tested and magnetic particle inspected
M4 feed ramps
.750” gas seat diameter
Weight: 1 lb 12 oz
The Bravo Company Manufacturing M4 Upper Receiver Assembly is professional grade weaponry. Precision machined to MIL-SPEC from a 7075-T6 aluminum forging provides this upper with exceptional strength. The inside diameter of the receivers threaded bore has been slightly undersized to provide a tighter fit with the barrel extension, resulting in a more accurate rifle.

NOTE: Please use a heat gun or hair dryer to warm up threaded bore of receiver if barrel extension is too tight.

Laser engraved T-markings
No BCM logo etched on the rear of the rail
Marked BCM4 over the gas tube port
7075-T6 aluminum
Factory assembled forward assist, and ejection port cover
Hardcoat Type III, Class 2 anodized
Dry film lube on interior bore per MIL-SPEC
Made in the U.S.A.


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