Built on the Mk4 platform this 10.5 9mm DISSENT® is smaller in all the right places without compromising on user friendliness. A standard AR15 magwell allows for use of CMMG® 9 AR conversion magazines while the upper receiver houses the entire action completely eliminating the need for a conventional AR buffer system. Manipulating the bolt is as simple as reaching forward and pulling the forward non-reciprocating charging handle to the rear allowing full operation while aiming downrange. – Platform Mk4 – Caliber 9mm – Operating System Compact Action-Radial Delayed Blowback – Barrel Length 10.5 – Barrel Twist 1:10 – Barrel Contour MT – Barrel Material 4140CM SBN – Barrel Twist 1:10 – Muzzle Device CMMG ZEROED Linear Compensator – Muzzle Thread 1/2 x 28 – Upper Receiver DISSENT 9mm 7075 T6 Aluminum – Lower Receiver Mk4 Forged 7075 T6 Aluminum – Hand Guard CMMG 9.6 Proprietary – Finish Cerakote – Charging Handle DISSENT Side Charger – Left – Pistol Grip CMMG ZEROED Pistol Grip – Receiver Extension 1913 Picatinny Rail End Cap – Trigger Type ZEROED Drop-In Single Stage – Trigger Guard CMMG ZEROED Trigger Guard – Safety Selector CMMG ZEROED 60/90 Degree – Magazine (2) CMMG 30rd