Quick look at the full auto KP13 Gas Blowback Pistol from KJ Works that is available at Destockage Games... "Discover the KP13, a GAZ BLOWBACK (GBB) airsoft replica from KJ Works. This Glock type PA has a perforated cylinder head and a thread to adapt a silencer. Semi & Full auto, adjustable hop-up, fluorescent sights ... the KP13 will be the ideal partner for all your games."