G&G Gr-15 EBB

  • High quality polymer upper and lower recievers, Bad compression (Mostly from piston head), weak spring (velocity drops with use), weak motor, good bucking, aluminum barrel, Non-heat treated gears, plastic piston (less rigid plastic than cream.) AoE needs correcting, Shimming is good OTB, brass bushings, brass cylinder, thin aluminum gearbox shell. Thin wiring.


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