GBU Custom Series - Extended Match Grade Hi-Capa M01 Mag Release Colour:Silver Outer diameter: 29

Outer diameter: 29

this gearbox is amazing quality and can be installed into a lot of different gel blasters with the correct combo of t piece and the minor possible receiver mods

Easy Mag Fill Function

Upgrade your magazines with Golden Eagle replacement

it's no wonder why it's been crowned the top gas blowback of 2026

GBU Custom Series - Extended Match Grade Hi-Capa M01 Mag Release Colour:Silver Outer diameter: 29The GBU Hi Capa Mag release is a unique product giving you both great looks and efficient mag release. With a comfortable design and a range of colours, you will want to try one of these bad boys out. Specifications CNC Machined from Aluminium 6061 Material Easy Installation 4 Colour Variety For TM Spec Hi Capa