RA-TECH Magnetic Locking NPAS Complete bolt carrier (SV / AAC) for WE M4 M16 416 888 T91 AR GBB

Specification: YouTube:

for WE M4 M16 416 888 T91 AR GBB This set includes an aluminum loading nozzle, three nozzle tips and a tool. Tested with 0.2g bbs, 370mm inner barrel, the muzzle velocity reads as below:   Red 4mm - 145 m/s (475 fps) Blue 3mm - 125 m/s (410 fps) Grenn 2mm - 95 m/s (312 fps)

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