semi auto handguns,CMMG,55ADF4E,5.56x45mm 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 STOCKCMMG MK4 K 5.56mm NATO 12.5″ Barrel, 30rd Mag $861.79 $775.61 Add to cart