RM400-16B-C Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKSig M400 AR-15 5.56/223 Carbine 16″ Barrel 30 Rd mag $849.99 Original price was: $849.99.$764.99Current price is: $764.99. Add to cart