4.5mm Showing all 2 results 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 STOCKCrosman Air Guns 1911BB CO2 Powered Semi-Auto Pistol 4.5mm/BB Caliber Fixed Front Sight Fixed Notch Rear Sight Black Frame with Brown Grips $39.89 Original price was: $39.89.$25.13Current price is: $25.13. Add to cart Sale! IN STOCKCrosman DPMS SBR 4.5mm BB, Semi/Full Auto, Flip Up Sights, Angled Foregrip, Dropout Mag, Black, 25rd $163.89 Original price was: $163.89.$103.25Current price is: $103.25. Add to cart