Milbro M92 Rail CO2 4.5mm BBThis model is styled after the classic Beretta 92-fs. This is a high power blow-back 177 metal firing BB gun. Powered by the Co2 capsules, this fires the 177 copper/steel BB's at upto 312 Feet Per Second! You will get upto 30-40 shots out of a single Co2 capsule, has an a..