GLOCK 17 — The original. This is how the Austrian firearms company advertises its celebrated model. And with good reason: Police units all over the world have been relying on it since 1982. The CO-powered airsoft version picks up this fascinating tradition, and with its blowback and heavy metal slide it delivers a highly realistic recoil. Moreover, its original markings and identical dimensions make it attractive to collectors. The practical all-in-one magazine holds 14 BBs along with a 12 g CO cartridge.