Upgrade set 575 FPS for M40 CM.700/700a/708, Cyma, C.258

Upgrade set 575 FPS for M40 CM.700/700a/708, Cyma, C.258

575 FPS upgrade set for M40 (CM.700, CM.700a) and R700 (CM.708) rifles from Cyma. Reinforced upgrade parts and spring to increase the performance of the sniper rifle. The kit includes a metal piston made of duralumin with a rubber impact for better shock absorption, a spring, and a metal spring guide with an axial ball bearing. With these parts, you can achieve a performance of 170-180 m/s (0.20g BB), which will significantly increase the rifle's range and allow you to use heavier BBs, which will increase shooting accuracy.

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