8mm Retro Arms LoPro Bushes mp5 mag These are the GBU Custom

These are the GBU Custom Series CNC Alloy speed cannons

GBU Adjustable Trigger Overview

It is one of the latest innovations from the WELL company

Iron Sight

1 x Brand New Solid M4 GBU Custom Metal Gel Blaster

8mm Retro Arms LoPro Bushes mp5 mag These are the GBU CustomThe Retro Arms low profile bushes are very sought after by gel blaster techs all over. These CNC steel bushes give the perfect stability and durability you search for when you begin your next gearbox upgrade. Good to Know These bushes also may lower the chance of you having to grind out sections of your gearbox to make gears sit in without being too tight. They sit flush inside your gearbox and give you a solid platform to begin your upgrades.