The SIGM400 TREAD COIL sets a new standard in performance and value in the AR category. With installed accessories including ROMEO5 Red Dot Sight, 2 Stage Match Trigger, and 13” lightweight handguard, the COIL is the perfect rifle package for the avid user or first-time buyer. Other features of the TREAD COIL include the precision 16” stainless barrel, ambidextrous controls, and 6-position Magpul SL Stock.
Additional TREAD branded accessories can be purchased separately and include:
– M-LOK handguard with lightening cuts to reduce weight, available in 13” and 15” lengths;
– 3 chamber compensator;
– Ambidextrous charging handle made of aircraft-grade aluminum and a dual roll pin design;
– ROMEO5 optic featuring a 2MOA dot with ten illumination settings, MOTAC, and 50k battery life;
– Flip-up front and rear iron sights that are easy to install, adjustable, and deploy quickly;
– M-LOK front sight adapter with co-witness height made of lightweight aluminum;
– Multiple configurations of M-LOK grip kits made of high strength polymer;
– Factory upgraded flat blade, single-stage trigger.