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

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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