CMMG 64A7B0CAB: Maximize your medium-range abilities with the 6.5 Grendel chambered Dissen pistol. Designed for use with AR15 pattern rifles 6.5 Grendel gives hunters and target shooters alike a taste of .308 Win ballistics without the need for a larger rifle and felt recoil. - Hosting an array of Zeroed parts and accessories the Dissent builds on the renowned AR15 manual of arms and is available in a variety of custom Cerakote finish options. The rear of this Dissent features a 1913 Picatinny rail end plate that allows for the attachment of accessories like sling mounts folding stocks and more. - Platform Mk4 - Caliber 6.5 Grendel - Operating System Direct Impingement - Barrel Length 16.1 - Barrel Twist 1:8 - Barrel Contour MT - Barrel Material 416SS SBN - Barrel Twist 1:8- Muzzle Device CMMG Zeroed Muzzle Brake - Muzzle Thread 5/8 x 24 - Gas Port Location Rifle - Gas Block Adjustable 0.750 - Upper Receiver Dissent 7075 T6 Aluminum - Lower Receiver Mk4 Forged 7075 T6 Aluminum - Hand Guard CMMG 15 Proprietary - Finish Cerakote - Charging Handle Dissent Side Charger Reversible - Pistol Grip CMMG Zeroed Pistol Grip - Receiver Extension 1913 Picatinny Rail End Cap - Trigger Type Zeroed Drop-In - Trigger Guard CMMG Zeroed Trigger Guard - Safety Selector CMMG Zeroed 60/90 Degree - Magazine CMMG 10rd (2) - Weight 6.4 lbs - Length 26.3