The Colt M4 Carbine (brand part no. LE6920) in .223 Remington/5.56 NATO and black finish is Colt’s semi-automatic take on the M4 platform, built around a chrome-lined, 1:7-twist barrel that keeps ammunition options virtually unlimited. Colt runs a direct-gas-impingement action with a locking bolt for reliable cycling, and a muzzle compensator tames muzzle rise during rapid fire. The rifle ships with a Magpul MBUS flip-up rear sight adjustable for windage, a 4-position collapsible stock, and a 30-round Magpul PMAG, and its mil-spec lower accepts any standard AR trigger assembly. Among AR rifles, this carbine configuration favors shooters who want Colt’s mil-spec M4 pedigree in a duty-ready build.

Key Specifications

• The chambering is .223 Remington/5.56 NATO.
• The capacity is 30+1 rounds, with a Magpul PMAG included.
• The barrel measures 16.1 inches, chrome-lined at a 1:7 twist.
• The muzzle device is a compensator that reduces muzzle rise.
• The action is direct gas impingement with a locking bolt.
• The rear sight is a Magpul MBUS flip-up, adjustable for windage.
• The stock is a 4-position collapsible stock.
• Overall length ranges from 32 to 35 inches depending on stock position.
• Unloaded weight is approximately 6.95 pounds.
• The finish is black, anodized.

Frequently Asked Questions

Does this rifle include sights? Yes, a Magpul MBUS flip-up rear sight adjustable for windage.

What magazine does this rifle ship with? A 30-round Magpul PMAG.

Can the trigger be swapped? Yes, the mil-spec lower accepts any standard AR trigger assembly.

Buy the Colt M4 Carbine

Colt’s mil-spec M4 pedigree in a duty-ready build is exactly what this carbine delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.