Chrome Moly Vanadium Steel, Cold Hammer Forged Barrel; Ultra-compact platform with 7", 1:7 twist barrel for compatibility with subsonic and supersonic loads; Maxim Defense CQB Pistol Brace or CQB Gen 7 Stock (SBR) with enhanced buffer system functions reliably suppressed or unsuppressed; Linear compensator directs muzzle blast forward of the shooter. Muzzle threads (5/8-24) allow for muzzle device customization; Independently ambi GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters and is engineered for suppressed fire, with anti-gas features that redirect gas flow upward and away from the face and operator; Mil-Spec Lower Receiver with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point; Mil-Spec Upper Receiver with Indexing Marks and M4 Feed Ramps; Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Pistol Length, Direct Impingement; Maxim Defense CQB Pistol Brace