Standard Configuration Includes: 7.62 X 51MM Caliber"" 11"" Medium Contour Barrel"" Barrel Features a 1:10 Twist Rate"" Barrel Threaded 5/8x24 Right"" DS Arms Short Gas Piston System"" Stainless Steel Gas Piston"" 4140 Fully Machined & Heat Treated Cast Steel Type 1 or Type 2 Receiver - Carry Handle or Non Carry Handle Cut"" DS Arms 3 Prong Trident Flash Hider"" DS Arms Extreme Duty Extended PARA Scope Mount"" DS Arms SAW Style Pistol Grip"" DS Arms Picatinny Quad Rail Handguard"" Magpul CTR PARA Folding Stock"" Magpul Medium Height Cheek Riser"" Dual Aperture PARA Rear Sight"" Elevation Adjustable Front Sight Post"" Light Weight Alloy PARA Lower Trigger Housing"" DS Arms Extended Winter Trigger Guard"" DS Arms Enhanced Ambidextrous Magazine Release"" DS Arms Left Side Non-Reciprocating Extended Knob Cocking Handle"" 20 Round Magazine"" Owners Manual"" Hard Case and Sling Included"" Matte Black Duracoat Finish Included"" All NFA Rules Apply