£0.00 GBP
CNC Aluminum.
for GHK 553 GBB
Options:
50 degree (green) for muzzle velocity below 110 m/s
60 degree (yellow) for muzzle velocity 90-120 m/s
70 degree (blue) for muzzle velocity 110-140 m/s
75 degree (red) for muzzle velocity 130-150 m/s
80 degree