cowcow b01 hi capa blowbackhus sortCowCow B01 Blowback housing for the Hi Capa pistols. The housing is made of 7075 aluminum and has been CNC cut. It is also ultra light and weighs only 18 grams. It is built to last! The blowback housing here gives a better cycle on the gun and makes the gas go through better. In addition, the specially designed piston head can keep the O rings in good condition! This means that air leaks do not happen. It comes with 3 different sizes of o rings. It
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