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by Airgunloverboy265
Wed Apr 22, 2020 7:36 pm
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Help with making a diy blowback system

Hi guy's I need some help. Im trying to make a fullauto replica of a micro uzi with a blowback engine and feeder. Essentially I want it to operate kinda like this commercial one but im trying to come up with an engine that uses no qev or electronic part's ...