The Rock River Arms LAR-15X Varmint LTE A4 (XAR1547) is a semi-automatic rifle chambered in .223 Wylde/.556 NATO. Optimized for precision shooting, it features a 16-inch cryogenically treated stainless steel barrel, the acclaimed RRA Two-Stage Match Trigger, and a fixed A2 stock. Includes (1) 20rd magazine and rifle case. FEATURES CALIBER: .223 Wylde chamber for 5.56mm and .223 Caliber LOWER RECEIVER: Forged RRA LAR-15M UPPER RECEIVER: Forged A4, Extended Charge Handle Latch BARREL:16" Stainless Steel Barrel GAS SYSTEM: Low Profile Gas Block TRIGGER: RRA Two Stage Ultra Match Varmint / RRA Winter Trigger Guard HANDGUARD: RRA 12.5-Inch Lightweight Free Float Rail, M-LOK(R) Compatible BUTTSTOCK: RRA Operator A2, Black w/ Sling QD Ports PISTOL GRIP: Hogue Rubber Grip ACCURACY: 3/4 MOA at 100 Yards