ar 15 pistols,Diamondback Firearms,DB9RPFB4,9mm View cart “Diamondback DB9 AR Pistol 9mm 4.5″ Barrel, Black, 31rd” 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 STOCKDiamondback DB9 AR Pistol 9mm 4.5″ Barrel, Black, 31rd $1,283.33 $1,155.00 Add to cart