Aluminum Piston Head for WE Hi-Capa Series Airsoft Gas Blowback Pistol w/ o-ring

PTS / MEC M-Valve for Airsoft Gas Blowback Guns (Type: TM Hi-CAPA)

ICS Master Mods M4 HPA Magazine Adapter for Hi-CAPA Gas Blowback Airsoft Pistols

Master Mods Hi-Capa Enlarged Magazine Release Buttom Combination

Novritsch HPA M4 Magazine Adapter for Glock GBB

Army Armament X SP System Tokyo Marui Hi Capa GBB HPA Magazine Adaptor

CTM HPA to M4 Magazine Adapter for HI-CAPA Gas Blowback Airsoft Pistols

WE Gas Pistol Magazine Valve

Unicorn Airsoft Reinforced Output Release Valve for T-Marui Hi-CAPA GBB Pistols

VFC Glock 17/19/19x/45 Valve Knocker & Hammer Set

TTI CNC Hop Up Chamber for Tokyo Marui Hi-CAPA Gas Blowback Airsoft Pistols

TTI Airsoft CNC Hop Up Chamber for Elite Force GLOCK Gas Blowback Airsoft Pistol