Colt M4 Carbine CR6920 5.56 NATO 16.1″ 30rd Matte Black

About this product

The Colt M4 Carbine CR6920 is a semi-automatic modern sporting rifle chambered for .223 Remington / 5.56 NATO. It is built with an M4-profile, chrome-lined barrel measuring 16.1 inches and a 1:7 twist rate. The rifle ships with a Magpul PMAG 30-round magazine, Magpul MBUS rear sight, and a 4-position collapsible polymer stock for adjustable length of pull.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The barrel measures 16.1 inches and uses a chrome-lined M4 profile.
• The action is Semi-Auto (direct gas impingement).
• The twist rate is 1:7″.
• The magazine included is 1 × 30‑round Magpul PMAG.
• The stock is a 4-position collapsible polymer unit.
• The sights are Magpul MBUS rear and A2 front.
• The unloaded weight is approximately 6.9 lbs.
• The finish is Matte black (hard coat anodized).
• The receiver is forged 7075-T6 aluminum, flat top with Picatinny rail.

Designed for range training and general sporting use, the Colt M4 CR6920 provides familiar AR-pattern ergonomics, common magazine compatibility, and a modular platform that supports user customization and common aftermarket accessories. Its combination of serviceable components and straightforward controls makes it a practical choice for owners seeking a durable, adaptable modern sporting rifle.

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