Rock River Arms A1 Carbine SBR Features The Rock River Arms A1 Carbine SBR is built around a 10.5 inch lightweight chrome moly barrel giving the rifle a notably compact and maneuverable profile well suited to close quarters use. The barrel is threaded 1/2x28 and finished with an A1 flash hider providing muzzle control while leaving the option open for a suppressor or other muzzle device. A forged upper receiver with an integrated carry handle offers a classic sighting system reminiscent of early AR-15 rifles appealing to shooters who favor traditional styling over a flat-top configuration. The A1 car triangle handguard completes that retro aesthetic while still providing a secure heat-resistant grip surface for the support hand. An anodized black finish covers the aluminum receiver giving the rifle durable protection against wear and corrosion through regular use. The collapsible M4 stock allows the shooter to adjust length of pull for different body types or armor setups while the RRA A1 pistol grip provides a traditional comfortable hold. A single stage trigger delivers a straightforward reliable trigger pull suited to both range use and defensive applications. Shipping with one 30 round magazine a front sling swivel and an RRA case the Rock River Arms A1 Carbine SBR is available for sale at GrabAGun for shooters seeking a compact classically styled short barreled rifle. Rock River Arms A1 Carbine SBR Specifications Manufacturer: Rock River Arms Model: A1 Carbine SBR Caliber: 5.56 NATO Action: Semi-Auto Capacity: 30+1 Barrel Length: 10.5 Barrel Description: Threaded Barrel Material: Chrome Moly Steel Barrel Finish: Black Receiver Finish: Black Receiver Material: Aluminum Muzzle: Flash Hider Stock Description: M4 Grips: A1 Trigger: Single Stage Thread Pattern: 1/2x28 Includes: 1 Magazine Front Sling Swivel RRA Case Weight: 5.46 lbs Available At: GrabAGun