Colt AR15A4 5.56 NATO 20" Rifle 30rd Chrome Moly Barrel A2 Stock

The Colt AR15A4 delivers military-specification reliability in a civilian-legal configuration, bringing proven M16A4 technology to sporting and tactical applications. This full-size rifle features Colt's chrome-lined chrome moly vanadium barrel and time-tested direct impingement system for consistent performance across thousands of rounds.

What Makes This Different

Colt's AR15A4 maintains the exact specifications of the military M16A4 upper receiver, including the removable carry handle and 20-inch heavy profile barrel. The chrome-lined bore extends barrel life significantly compared to non-chromed alternatives, while the 1:7 twist rate stabilizes both 55-grain and 77-grain projectiles effectively. Government profile barrels provide enhanced rigidity over standard lightweight contours, improving accuracy potential during extended firing sessions.

Key Features

• 20-inch chrome-lined chrome moly vanadium barrel with 1:7 twist rate
• Removable A2 carry handle with dual aperture rear sight system
• A2 front sight post with standard sight radius configuration
• Fixed A2 buttstock with storage compartment and sling swivel
• Standard capacity 30-round aluminum magazine included
• Mil-spec trigger group with standard 6-8 pound pull weight
• Standard carbine buffer system compatible with mil-spec accessories

The 20-inch barrel length maximizes 5.56 NATO ballistic potential, delivering full powder burn and optimal muzzle velocity for precision shooting applications. Competition shooters benefit from the extended sight radius and barrel rigidity, while the chrome lining ensures consistent accuracy through high round counts. The A2 configuration excels in service rifle competition and long-range precision work where iron sights remain mandatory.

Technical Specs

• Caliber: 5.56x45mm NATO/.223 Remington
• Barrel Length: 20 inches, government profile
• Overall Length: 39.5 inches
• Weight: Approximately 8.5 pounds unloaded
• Twist Rate: 1:7 inches, 6 groove rifling
• Stock: Fixed A2 with storage compartment
• Sights: A2 front post, dual aperture rear in carry handle
• Magazine Capacity: 30 rounds (standard)
• Finish: Black anodized aluminum receivers, phosphate barrel
• Manufactured: United States by Colt Manufacturing

Colt's manufacturing heritage ensures dimensional consistency with military specifications, guaranteeing compatibility with standard AR-15 components and accessories. The proven reliability of this configuration has equipped military forces worldwide, making it a benchmark choice for serious shooters who demand uncompromising performance.