Design for HK PX4 Series Airsoft Gas Blow Black GBB Pistol Magazine. Part number of this part is 86. 3 O-ring for better air sealing. Upgrade Output Power. Increase the shooting power of each shot. Replace the standard Magazine Filling Valve of Magazine.
Weight with Package: 4g Color : Gold and Silver Over All Lenght : 17mm Manufacturer :H.K
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