Ruger Mini-14 Tactical Rifle, Semi-Automatic Rifle, 5.56NATO/223Rem, 16.1 Barrel, Matte Finish, Stainless Steel, Black Synthetic Stock, Adjustable Rear & Blade Front Sight, Includes Picatinny Rail/Scope Rings/2 Mags, 20Rd 05819 Ruger Mini-14 Series Autoloading rifles feature a Simple, rugged, Garand-style action with a breechbolt locking system, fixed-piston gas system and self-cleaning moving gas cylinder. This system provides unparalleled reliability under harsh operating conditions.