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20mm steel bolt carrier for TM MWS
$ 299.99 – $ 399.99
For Tokyo Marui MWS GBB rifle series
20mm x 62mm stroke bolt carrier (original is 19 x 52mm)
Gas exhaust hole on side surface
Heat treated steel/7075 T6 made(ASTM standard)
Honed cylinder surface
Increased recoil 1.5~2 times harder.
6 months, No warranty