The Colt M5 Carbine (brand part no. CM556-14H-M5S) is a 5.56 NATO short-barrel rifle with a 14.5-inch barrel, equipped with flip-up front and rear sights. Colt ships the M5 Carbine SBR with one 30-round magazine. The M5 Carbine favors shooters who want a proven, mil-spec-pedigree short-barrel platform from Colt with a longer sight radius than the 10.3-inch variant.

Key Specifications

• Chambered in .223 Rem/5.56 NATO.
• Wears a 14.5-inch barrel.
• Feeds from a 30+1-round magazine.
• Equipped with flip-up front and rear sights.

Frequently Asked Questions

Is this an NFA item? Yes. As a SBR, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What caliber does it fire? .223 Rem/5.56 NATO.

How long is the barrel? 14.5 inches.

Buy the Colt M5 Carbine SBR

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through Colt‘s short barrel rifles lineup and our Lubbock, Texas team will walk you through the transfer process.