Action: Semi-Auto - Caliber: 7.62 NATO - Capacity: 20rd - Barrel: 16 Fluted Match Grade Bull with Flash Hider - Sights: Drum Rear Post Front - Upper Receiver: Steel Black Powdercoat - Lower Receiver: Synthetic Black - Stock: Synthetic Black - Handguard: Aluminum Black - Length: 38.75 - Weight: 9.5 lbs. - Delayed blowback roller-lock system - H&K Navy-type polymer trigger group housing - Tactical handguard - (3) 6 1913 rails on handguard at the 3 6 and 9 o