Bomber CNC Aluminum TT Style Carry Magwell For Marui TM Hi-Capa GBBP Series Lower which means it has a

which means it has a trapezoidal top cross section instead of the usual round one

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It’s a simple stuff

For SIG AIR / VFC P30 M17 / M18 GBB Airsoft Pistol Series

WEIGHT : 4200g (With Scope)

Bomber CNC Aluminum TT Style Carry Magwell For Marui TM Hi-Capa GBBP Series Lower which means it has aLimited Japan version CNC Milled Aluminum TT Style Carry version with Pin set Design for JW3 Combat master JW4 Pit Viper GBB series 1: 1 scale Real size measurement 100% Made in Hong Kong Compatible with Tokyo Marui Hi Capa Factory size Magazine Fit for Tokyo Marui Hi Capa Airsoft GBB Series For Airsoft use only