Mossberg is pleased to offer MMR Tactical rifles configured with the components most highly desired by competitive shooters and tactical operators. The MMR's direct-impingement gas system allows for reliable, smooth operation. Increased accuracy is assured thanks to a free-floating, button-rifled, 16-1/4" carbon steel barrel. The Tactical MRR's premium barrels have a 1:9 rate of twist and include an A2-style muzzle brake. The MMR features an oversized charging handle for quick, ambidextrous engagement and a Stark SE-1 one-piece pistol grip with battery storage in the grip plug. A quad Picatinny rail makes it easy to customize your file with the endless array of tactical accessories available today. The 6-position adjustable stock allows changes in length-of-pull to accommodate shooters of all sizes. Durable black phosphate/anodized finish. Adjustable sights. 30-round magazine.