The ROGUE BASE Rifle features our E2 22 match-grade 6MM Creedmoor barrel and our Patented Roller Cam Pin. The Mil-spec Anti-tilt 6 Position Buffer Tube comes standard with a MAGPUL MOE SL-K Retractable Stock. The receiver set has been Hard Anodized black in color and this firearm features a 15 M-LOK Handguard. - Standard Features - Nitride Treated 4150 Chrome Vanadium Barrel - Black Anodize - Standard Low Profile DI Gas Block - Mil-spec Charging Handle - Mil-spec Trigger - SPECS - OAL (Collapsed) 40 - Weight 6.8 lbs - Rifling 1:7.5 twist 5R (6mm) - Barrel 22 - Trigger Mil-spec - Furniture MAGPUL MOE SL-K - Receiver Finish Black Anodize - Handguard 14 M-LOK - Muzzle A2 Flash Hider