The Maxim Defense SCW in 300 Blackout is the SBR-configuration 300 BLK suppressor-host variant of the SCW platform, combining the ultra-short SCW design with the subsonic-optimized 300 Blackout cartridge. It uses the Maxim SCW buffer and stock system with a 5.5-inch 300 BLK barrel, producing one of the most compact and capable suppressed SBR configurations available. NFA short-barreled rifle rules apply. Type: Semi-Auto Rifle Action: Semi-Automatic Caliber: 300 BLK Capacity: 30 Year introduced: 2018, USA Weight: 64 oz Overall length: 22.5" Status: Active Military use: Yes Intended use: special_operations, suppressed_use, vehicle_carry