Action Army Hop Up Chamber for Marui VSR10 Barrel-Thread-Size-(mm)_14mm It features a continuous upper

It features a continuous upper rail platform along with integrated sling swivels

Quick Detach QD Function

G&P M16 Metal Hop-Up Unit for Marui M4 / M16A2 AEG

Easy installation and easy to manipulate

When used with precision BB will increase firepower and accuracy of your MP7 by approx 5% - 10%

Action Army Hop Up Chamber for Marui VSR10 Barrel-Thread-Size-(mm)_14mm It features a continuous upperAction Army Hop Up Chamber for Marui VSR10 CNC Aluminum Construction Design to give more precise adjustment of pressure upon the hop up rubber, and therefore the BB It deviates away from the standard external adjustment to prevent your hop up losing it's adjustment from snagging on things.