The Colt Mono Carbine Rifle is a top-tier semi-automatic rifle designed for performance, durability, and modularity. Built on Colt’s proven monolithic upper receiver platform, this rifle delivers unmatched accuracy, reliability, and optic compatibility. Chambered in 5.56 NATO / .223 Rem, it features a 16.1-inch government-profile barrel, an M4-style adjustable stock, and a 30+1 capacity, making it ideal for tactical applications, range use, and home defense.


Key Features

  • Colt Monolithic Upper Receiver – One-piece design provides exceptional rigidity and repeatability for optics mounting.
  • True Free-Floating Barrel – Enhances accuracy and long-range capability by reducing barrel stress.
  • Mil-Spec Trigger & Hammer Pins – Ensures durability and reliability under heavy use.
  • Integrated Picatinny Rail – Runs continuously from the upper receiver to the front sight for flexible optics placement.
  • Flip-Up Rear Sight & A2 Front Sight – Offers versatile aiming solutions right out of the box.
  • M4-Style Collapsible Stock – Adjustable for comfort and customization to fit different shooting positions.
  • Straight Gas Tube & Removable Lower Rail – Provides modularity for attaching under-barrel accessories.
  • A2 Flash Hider – Reduces muzzle flash and preserves shooter vision in low-light conditions.

Specifications

  • Manufacturer: Colt Firearms
  • Model: Mono Carbine Rifle
  • Caliber: 5.56 NATO / .223 Rem
  • Action: Semi-Automatic
  • Barrel Length: 16.1” (Government Profile)
  • Twist Rate: 1:7”
  • Capacity: 30+1 Rounds
  • Sights: A2 Front, Magpul MBUS Rear (Flip-Up)
  • Muzzle Device: A2 Flash Hider
  • Handguard: Monolithic Upper with Full-Length Picatinny Rail
  • Stock: M4-Style Adjustable
  • Receiver Finish: Matte Black
  • Safety: Selector Switch
  • Weight: 6.79 lbs
  • Overall Length: 35.50”