The Colt Mid-Length M4 Carbine 5.56 NATO (Colt part no. CR6960) is a semi-automatic AR-pattern rifle built around a mid-length gas system and a 16.1-inch barrel. Colt gives it an extended M-LOK capable handguard and a flat top upper receiver, so a red dot or scope can go on without extra parts. Colt describes the lightweight profile barrel, mid-length gas system and extended handguard together as a setup for maneuverability and precision. A 30-round AR-style magazine comes with the rifle. It suits range days, home defense and anyone who wants a Colt-built carbine that is ready for an optic.

Key Specifications

• The chambering is 5.56x45mm NATO, a widely available rifle cartridge that keeps ammunition choices open.
• The barrel is 16.1 inches with a lightweight profile, which keeps the muzzle light and the rifle quick to handle.
• The gas system is mid-length, the length Colt specifies for this carbine alongside its lightweight barrel.
• The handguard is an extended M-LOK capable design, so lights, grips and rail sections mount without a separate rail.
• The flat top upper receiver is ready for optical sights and accessories, which is where most owners start.
• Magazine capacity is 30+1 rounds, and one 30-round AR-style magazine is included.
• The action is a gas-operated semi-automatic, firing once per trigger pull.
• The stock is a collapsible synthetic design, which lets the length of pull adjust to the shooter.
• The pistol grip is black polymer, giving a secure hold in a familiar AR shape.
• The rifle has an overall black finish on the receivers, barrel and furniture, so it matches most accessories.

Frequently Asked Questions

What gas system does this Colt M4 carbine use? It uses a mid-length gas system with a 16.1-inch lightweight profile barrel and an extended handguard.

Can I mount accessories on the handguard? Yes. Colt describes the extended handguard as M-LOK capable, so lights, grips and rail sections that use the M-LOK pattern can be attached.

Is the rifle ready for an optic? Yes. Colt built the flat top upper receiver for optical sights and accessories.

Buy the Colt Mid-Length M4 Carbine 5.56 NATO Rifle, 16.1-Inch Barrel, Black

The Colt mid-length M4 carries the familiar AR-15 layout with a longer gas system and a handguard that is ready for accessories. It makes a clean base for a first optic, light and sling setup. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and see more AR rifles while you are there.