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.Free Floating HandguardSig Sauer Ergonomic Pistol GripAmbidextrous Safety ControlsAmbidextrous Mag Release ControlsPalmetto State Armory has the best selection of Modern Sporting Rifles, parts and accessories!#html-body [data-pb-style="62DF8287D087F"]{justify-content: flex-start; display: flex; flex-direction: column; background-position: left top; background-size: cover; background-repeat: no-repeat; background-attachment: scroll; border-style: none; border-width: 1px; border-radius: 0px; margin: 0px 0px 10px; padding: 10px;}#html-body [data-pb-style="62DF8287D088C"]{border-style: none; border-width: 1px; border-radius: 0px; margin: 0px; padding: 0px;}