Ruger Mini-14 Tactical Rifle, Semi-Automatic Rifle, 300 Blackout, 16.1 Barrel, Blued Finish, Alloy Steel, Black Synthetic Stock, Adjustable Rear & Blade Front Sight, Includes Picatinny Rail/Scope Rings/2 Mags, 20Rd 05864 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.