The M400-TREAD features a free-floating M-LOK enhanced handguard that is lightweight yet rigid for extreme control and ease of mounting accessories such as lights and handstops. The lower receiver has an ambidextrous safety for right or left-handed operation and includes an integrated QD mount for easy sling attachment. Chambered in 5.56 NATO, the M400-TREAD has a 16″ stainless steel barrel fitted with a 3-prong flash hider. The M400-TREAD also has a mid-length gas system offering smoother operation and reduced recoil. A SIG Matchlite 2-stage trigger for enhanced control and improved accuracy as well as a MAGPUL SL-K telescoping stock for easy adjustment and a customized fit.