Colt MSR CR6920 M4 Carbine 5.56mm AR-15 30rd Rifle, 16.1” Barrel, Black

Overview

The Colt MSR CR6920 M4 Carbine is a semi-automatic AR-15-style rifle chambered in 5.56mm NATO. Based on the proven M4 platform, the CR6920 combines a forged aluminum receiver set, chrome-lined barrel, carbine-length gas system, and familiar M4-style controls and furniture.

The rifle features a 16.1” barrel with a 1:7 twist, flat-top upper receiver with M4 feed ramps, adjustable stock, polymer handguard, and Magpul MBUS sights. A reversible selector switch and right-hand configuration provide familiar controls for a wide range of applications.

Key Features

• 5.56mm NATO chambering
• 30+1 round capacity
• 16.1” barrel with 1:7 twist
• Direct gas impingement operating system
• Semi-automatic action
• Carbine-length gas system
• Chrome-lined barrel
• Forged 7075-T6 aluminum upper and lower receivers
• Flat-top upper receiver with M4 feed ramps
• 1/2x28 threaded muzzle
• A2-style birdcage flash hider
• Polymer handguard
• Adjustable four-position stock
• Magpul MBUS sights
• A2-style pistol grip
• Reversible selector switch
• Matte black finish

Specifications

• Manufacturer: Colt
• Model: MSR CR6920 M4 Carbine
• Firearm Type: AR-15 / Modern Sporting Rifle
• Action: Semi-Automatic
• Caliber: 5.56mm NATO
• Capacity: 30+1
• Barrel Length: 16.1”
• Barrel Twist: 1:7”
• Operating System: Direct Gas Impingement
• Gas System: Carbine Length
• Barrel: Chrome Lined
• Muzzle Thread: 1/2x28 TPI
• Muzzle Device: A2-Style Birdcage Flash Hider
• Upper Receiver: Forged 7075-T6 Aluminum, Flat Top
• Lower Receiver: Forged 7075-T6 Aluminum
• Feed Ramps: M4
• Handguard: Polymer
• Stock: Four-Position Adjustable
• Pistol Grip: A2 Style
• Sights: Magpul MBUS
• Hand: Right
• Finish: Matte Black
• Overall Length: 35.5”
• Weight: 5.95 lbs.

Applications

The Colt MSR CR6920 provides the familiar configuration and controls of an M4-style rifle in a civilian semi-automatic platform. Its 16.1” barrel, carbine-length gas system, adjustable stock, and flat-top receiver make it suitable for range use, training, and general-purpose shooting applications.

Additional Features

The flat-top upper receiver provides a versatile mounting platform, while the Magpul MBUS sights offer adjustable front and rear sighting capability. The 1:7 twist barrel is designed for use with a broad range of 5.56mm projectile weights.