Accurate Metal Hop Up Chamber for M16/M4 Series

Hop-up chamber and bucking mainly provide backspin to BBs as they exit barrel to increase flight duration and therefore range, whose proper adjustment can enhance trajectory.

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.

Features:

• Designed for M16/M4 series AEGs
• Comes with 2 hop up arms for different buckings. Gives you two hop up arm for the price of one
• Redesigned hop up arm with an adjustment gear making accurate adjustment easier
• Adjustment button with O-ring to assure tightness
• Hardened pressure point making the hopper more accurate with a stable, faster pressurization