Colt Monolithic Carbine 5.56 NATO

The Colt Monolithic Carbine is engineered for modularity and repeatable optics alignment, making it suited to range training, sporting use, and personal defense. Its full-length monolithic upper receiver provides a continuous Mil‑Spec rail for consistent sight and optic mounting across sessions.

The carbine is built around a 16.1-inch barrel and a collapsible M4-style stock for a balance of maneuverability and controllable handling. Controls and ergonomics follow AR/M4 conventions, with an ergonomic polymer grip and a reversible safety selector for right-hand shooters.

Key Specifications

• The action is Semi-Automatic.
• The caliber is .223 Remington / 5.56x45mm NATO.
• The barrel length is 16.1 inches.
• The capacity is 30 + 1 rounds.
• The rate of twist is 1:7".
• The sights are Magpul MBUS flip-up front and rear.
• The muzzle device is a A2 birdcage flash hider.
• The receiver features a one-piece monolithic upper with a full-length Mil‑Spec rail.
• The stock is a M4-style collapsible stock.
• The finish is matte black / hard coat anodized.

For those seeking a durable, optics-ready AR platform, the Colt Monolithic Carbine delivers consistent mounting geometry and modern accessories. Find the Colt Monolithic Carbine 5.56 NATO for sale online today and review Colt firearms specifications when comparing AR-style carbines.