The RESOLUTE 300 is CMMG�s most feature-filled configuration. CMMG�s Premium Cerakote comes standard on 300 Series models � choose from one of ten different colors. It is built with CMMG�s Mk57 lower receiver Geissele SSA Two-Stage Trigger and Magpul MOE pistol grip. It comes with a CMMG Ambi Charging Handle and Ambi Safety Selector along with CMMG�s RipStock or RipBrace pre-installed depending on configuration. The upper receiver has a 16-inch barrel and features CMMG�s patented Radial Delayed Blowback operating system. It ships with one 20-round Pro Mag. - TECH SPECS: - CALIBER: 5.7x28mm - BARREL: 16.1� 1:9 Twist Medium Taper 416SS - MUZZLE: SV Brake threaded 1/2-28 - GAS PORT LOCATION: N/A - RECEIVER: Forged 7075-T6 AL M4 type upper Billet 7075-T6 AL Lower - HAND GUARD: CMMG RML15 M-Lok hand guard - FINISH: Cerakote Receivers Hand Guard and Stock - CHARGING HANDLE: CMMG Oversized Ambi - PISTOL GRIP: Magpul MOE - BUTT STOCK: CMMG RipStock with 6 Position Enhanced Receiver Extension - TRIGGER: Geissele Automatics SSA 2-Stage - TRIGGER GUARD: Magpul MOE - SAFETY SELECTOR: CMMG Ambi - MAGAZINE: Pro Mag 20rd - WEIGHT: 6lbs 1oz(unloaded) - LENGTH: 32.8�(stock collapsed)