ar 15 pistols,CMMG,57A1843-SG,5.7x28mm View cart “CMMG Banshee 300 Mk57 5.7x28mm, 5″ Barrel, RipBrace, Sniper Grey, 20rd” 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 STOCKCMMG Banshee 300 Mk57 5.7x28mm, 5″ Barrel, RipBrace, Sniper Grey, 20rd $1,599.89 Original price was: $1,599.89.$1,439.90Current price is: $1,439.90. Add to cart