The Rock River Arms A1 Carbine SBR 5.56 NATO 10.5" delivers a classic AR-15 profile in a compact, short-barreled rifle package. Built on forged LAR-15 receivers with an integral A1 carry handle, it features a lightweight 10.5-inch chrome-moly barrel with a threaded 1/2x28 muzzle and A1 flash hider, plus the distinctive A1 CAR triangle handguard for a retro yet practical feel.

This semi-automatic SBR is chambered in .223 Remington/5.56 NATO and ships with an RRA A1 pistol grip, adjustable M4 stock, and a 30-round magazine, making it well suited for range work, training, and general-purpose defensive roles where a shorter overall length is preferred. The rifle includes a front sling swivel and RRA case, reflecting Rock River Arms’ focus on practical details and the reliable craftsmanship that has made the brand a favorite among discerning shooters.

Key Features:

• Manufacturer: Rock River Arms
• Model: A1 Carbine SBR
• Caliber: .223 Remington / 5.56 NATO
• Condition: New
• Action: Semi-Automatic
• Barrel Length: 10.5"
• Number of Magazines: 1
• Capacity: 30
• Threaded Barrel: Yes, 1/2x28 with A1 Flash Hider
• What's In The Box: Rifle, 1 Magazine, Front Sling Swivel, RRA Case
• Weight: 5.46 lb
• Length: 26 1/8"–29 3/8"