Primary Weapons Systems MK112 .300 Blackout Black AR-15 SBR Rifle

The Primary Weapons Systems MK112 .300 Blackout SBR brings the capability of the .300 Whisper concept to an AR-style platform, supporting both subsonic and supersonic loads in the same rifle. Built around a mid-length gas piston system with an adjustable gas block and a free-floated 15-inch handguard, the MK112 is designed for reliability and accuracy while staying as light as possible for its class.

Key features

• .300 Blackout SBR configuration with a 12.75 inch barrel for compact AR performance
• Mid-length gas piston system with long-stroke fixed operating rod and adjustable gas block
• Free-floated barrel and PWS KeyMod rail system with a continuous 1913 top rail
• ALG Defense QMS trigger and BCM Gunfighter charging handle for consistent control
• Magpul MOE stock and grip plus MBUS2 iron sights included
• Uses standard Magpul 30-round PMAG magazines

A compact, piston-driven .300 Blackout SBR built on a forged mil-spec receiver set and finished in a durable black configuration.