DSA SA58 16" Traditional Profile Barrel, Fixed Stock Rifle Standard Configuration Includes: 16" Premium Traditional Profile Barrel. Barrel Features Bi-Pod Cut & Front Sling Swivel. Barrel Threaded 9/16x24 LEFT. 7.62 X 51mm NATO. 4140 Fully Machined & Heat Treated Cast Steel Type 1 or Type 2 Receiver - Carry Handle or Non Carry Handle Cut. Belgian Style Combo Device Flash Hider. U.S. Made Glass Filled Nylon Pistol Grip. U.S. Made Glass Filled Nylon Reinforced Full Length Handguards. U.S. Made Glass Filled Nylon Humpback Buttstock. Light Weight Alloy Lower Trigger Frame. 20 Round Metric Magazine. Mfg: D.S. Arms