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ProWin Reinforced Hammer Spring for Inokatsu M4

by ProWin
Original price HK$30.00 - Original price HK$30.00
Original price
HK$30.00 - HK$30.00
Current price HK$30.00
For those of you wishing to use the ProWin M4 gas magazines in an Inokatsu M4, we recommend you to purchase this product. The reason is because the Inokatsu M4's factory hammer spring is sometimes not stiff enough to strike open the valve on this ProWin gas magazine. The stiffer hammer spring solves that problem.