Rock River Arms LAR-15M BLK2132 300 AAC Blackout 8" 30+1 Semi-Auto AR Pistol w/ SBA3 Arm Brace

The Rock River Arms LAR-15M BLK2132 is a factory-built AR-style pistol chambered in 300 AAC Blackout. Featuring an 8" barrel and an overall length of just 24", this compact platform is well-suited for suppressed 300 BLK shooting, home defense, and close-quarters applications.

The BLK2132 is built around a black aluminum receiver with an integrated Picatinny optics rail, paired with a lightweight free-float M-LOK compatible handguard for accessory mounting. A low-profile gas block and a single-stage trigger complete the upper. The pistol is finished in black throughout and weighs just 5.20 lbs.

For stability and control, the BLK2132 wears a black polymer SB Tactical SBA3 Arm Brace and a black Hogue rubber pistol grip. The pistol ships without iron sights, allowing the end user to mount their preferred optic directly to the receiver's Picatinny rail.

Operating on a semi-automatic action with a lever safety, the LAR-15M delivers a 30+1 capacity via detachable magazine. Made in the USA by Rock River Arms, the BLK2132 is a complete, ready-to-ship AR pistol for civilian shooters seeking a high-quality, factory-built 300 AAC Blackout platform.

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