Product Overview
- Semi-automatic short barreled rifle chambered in 5.56 NATO / .223 Remington with a 14.5" monolithic upper barrel.
- Monolithic 7075-T6 aluminum upper with integrated Picatinny quad rail; weighs 6.6 lbs with an OAL of 30.5"–33.75".
- Includes folding front sight, Magpul MBUS rear sight, A2 flash hider, and M4 collapsible buttstock.
- Must ship to a Federal Firearms License (FFL) holder.
Overview
The Colt M4 Mono in 5.56 NATO / .223 Remington is a short barreled rifle built on a monolithic 7075-T6 aluminum upper receiver with an integrated Picatinny quad rail. The 14.5" chrome-lined, free-float barrel uses a mid-length/pistol gas system. Overall length runs 30.5" to 33.75" with the M4 collapsible stock, and the rifle weighs 6.6 lbs. A mil-spec trigger and standard safety selector are fitted.
Key Features
- 14.5" chrome-lined free-float barrel — monolithic upper integrates the handguard and receiver into one piece
- Monolithic Picatinny quad rail — provides top, side, and bottom accessory attachment without separate hardware
- 7075-T6 aluminum upper receiver with anodized black finish — aircraft-grade alloy construction
- Mid-length/pistol gas system — fitted to the 14.5" barrel configuration
- Folding front sight + Magpul MBUS rear — iron sight system included from the factory
- A2 flash hider on 1/2x28 threads — standard muzzle device compatible with 5.56 accessories
- M4 collapsible buttstock — adjustable to six positions; OAL 30.5"–33.75"
FFL & Compliance
This firearm is an NFA-regulated Short Barreled Rifle and must ship to a Federal Firearms License (FFL) holder. The buyer is responsible for knowing and complying with all applicable local, state, and federal laws, including NFA transfer requirements. Magnum Ballistics does not provide legal advice or determine buyer eligibility. We ship only to the FFL selected during checkout.