RM400-16B-E View cart “Sig M400 Elite AR-15 223 Rem/5.56, 16″ Barrel Telescoping Black, Stock Black Nitride, 30rd Mag” has been added to your cart. 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 Elite AR-15 223 Rem/5.56, 16″ Barrel Telescoping Black, Stock Black Nitride, 30rd Mag $958.09 Original price was: $958.09.$862.28Current price is: $862.28. Add to cart