PM400SDI11BBLK 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 Sauer M400 SDI 5.56x45mm, 11.5″ Threaded Barrel, Black, M-Lok Handguard, 30rd $1,499.99 Original price was: $1,499.99.$839.99Current price is: $839.99. Add to cart