20mm STRATOS CNC steel bolt for Tokyo Marui AKM GBBR(Gen2)
20mm STRATOS CNC steel bolt for Tokyo Marui AKM GBBR(Gen2)
$ 389.99
Available on back-order
Patented telescopic dual stage blow back system
20mm cylinder bore x 55mm nozzle travel (original 19mm x 44mm)
Full bolt carrier travel
steel CNC made bolt carrier group
steel cast made recoil spring holder
high ROF buffer spring standard
PA12 nozzle
7075 T6 CNC made cylinder and cylinder bolb
2nd batch performs better than below video