Gunsmith Bros Ultra Cut Open Upper Slide Set for Marui Hi-Capa GBB Battery-Size_7.4v Include Dummy FN1900 Pistol

Include Dummy FN1900 Pistol

Mounting system which can fit on the railed system of the FAST or Arc helmets

NOTE: You can always choose a longer Barrel if you have a extended Outer barrel installed

Design For Replace the Original Hop Up Rubber

Gunsmith Bros Ultra Cut Open Upper Slide Set for Marui Hi-Capa GBB Battery-Size_7.4v Include Dummy FN1900 PistolGunsmith Bros Ultra Cut Open Upper Slide Set for Marui Hi Capa GBB CNC Aluminum Construction Packagen Include Slide, Cocking Handle, Compensator & Outer Barrel IPSC style Slide (With Big Hole On Front Top, Small Hole on Both) Suitable for Tokyo Marui Hi Capa Series Airsoft Gas Blow Back GBB Airsoft Guns Pistol