Modify Accurate Metal Hop Up Chamber for M4 Series


An aftermarket hopup unit from Modify.

Out of stock


Modify’s Metallic, Hi-efficiency Hop-up Chamber is designed for M16/M4 AEGs. The newly designed hop up arm are now gear driven with precision rapid, accurate adjustment without slipping.

The adjustment knob has O-ring to assure tightness to enhance stability, air-tightness of the hop-up, also raising efficiency of loading. The pressure point being the rigid type for speed, stability and accuracy.

This hop-up chamber comes with the standard hop up arm and also a bonus one with a raised hop up arm to offer great value for money.

Accurate Metal Hop Up Chamber for M16/M4 Series Features

hop up arm are interchangeable between raised pressure point type to the stock. Gives you two hop up arm for the price of one.

Redesigned hop up arm by adding an adjustment gear making accurate adjustment easier.
Adjustment button with O-ring to assure tightness.

We hardened the pressure point making the hopper more accurate and stable faster pressurization


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