The M400 TREAD is an optics ready, aluminum frame rifle. TREAD features a 16'' stainless steel barrel with a free-floating M-LOK handguard, a single-stage polished/hard-coat trigger, ambidextrous controls, a Magpul SL-K 6 position telescoping stock, a mid-length gas system, and is available in 5.56 NATO. ## Product Details - Caliber: 5.56 NATO - Capacity: 10 Rounds - Barrel Length: 16'' - Action: Semi-Auto - Stock: 6-Position SL-K - Trigger: Single Stage Polished/Hard-Coat - Twist Rate: 1:8 - Grip: Polymer - Rail: M-LOK