Cmc Triggers Ar Barrel Bbl-556-002 Ar15 556 Nato Brl 10.5 Carbine

The CMC Triggers AR Barrel in 5.56 NATO is a quality replacement or upgrade barrel built for AR-15 platforms that demand reliability and accuracy. This 10.5-inch carbine-length barrel is constructed from chrome moly vanadium steel and finished with black nitride, delivering a durable setup for shooters building short-barreled uppers, SBR platforms, or compact defensive rigs. Whether you're swapping in a fresh tube for a worn barrel or experimenting with a shorter profile, this CMC offering gives you a proven foundation without the guesswork.

CMC Triggers has built a reputation in the AR community for precision components, and this barrel reflects that focus. The button-rifled construction ensures consistent bore geometry and helps achieve the accuracy you'd expect from a purpose-built carbine. The black nitride finish resists corrosion and wear, making it practical for hunters, competition shooters, and operators who put their rifles to work in real conditions.

At 10.5 inches, this barrel threads into any standard AR-15 upper receiver and pairs cleanly with your existing bolt carrier group, handguard, and gas system. It's a straightforward swap that opens up platform flexibility without breaking your build budget or requiring custom fitting.

Key Features

• 10.5-inch carbine length – compact profile for tactical, SBR, and defensive builds
• 5.56 NATO chambering – standard ammunition compatibility across platforms
• Chrome moly vanadium steel – proven material for strength and longevity
• Black nitride finish – corrosion-resistant and durable in harsh conditions
• Button rifled – consistent bore geometry for reliable accuracy
• Standard AR-15 threading – direct fit to any mil-spec upper receiver

Specifications

Barrel Length	10.5 inches
Caliber	5.56 NATO
Material	Chrome Moly Vanadium Steel
Finish	Black Nitride
Rifling Method	Button Rifled
Platform	AR-15

Frequently Asked Questions

Will this barrel fit my AR-15 upper?

Yes. The CMC Triggers barrel uses standard AR-15 threading and installs directly into any mil-spec upper receiver without modification.

What's the barrel made from?

It's constructed from chrome moly vanadium steel and finished with black nitride for durability and corrosion resistance.

Is this barrel suitable for an SBR or short-barreled rifle?

Yes. At 10.5 inches, it's designed for carbine and short-barreled platforms commonly used in tactical, defensive, and specialized builds.

What ammunition does it shoot?

The barrel is chambered in 5.56 NATO, the standard rifle round used across AR-15 platforms.