Price: $85.00 – $98.64 — In stock at 2 retailers.
Prices last checked August 18, 2026 across 2 retailers.
This CNC aluminium hop-up chamber is precisely machined to perform precisely and consistently on TM standard M4/M16 AEG series. Features: Aluminum knob for fine hop-up adjustments. Precise hop-up lever. Bucking knobs to perform consistently on every single shot. Interchangeable inlet adapter Removable CNC brass side wings are mounted, which slide easily into the outer barrel slots. CNC C-clip with Delrin latch to keep the inner barrel firmly in place without wobbling and twisting. New BB locking system to prevent BB from falling out after the magazine is removed. The locking arm can also be pressed manually to release the remaining BB from the hop-up chamber. What’s in the box: The hop-up chamber, tension spring, c-clip, brass stabilizer, extra shims for the front, o-rings for the barrel and a manual. Please note: Installing this part into a replica will void the warranty of directly affected parts within that replica. i.e., if the Hop-up unit is exchanged, the warranty of all gearbox parts will be void . Thank you for your understanding. Happy teching!
MAXX Hopup Chamber M4 AEG price comparison: the lowest price is $85.00 at Novritsch US, the highest is $98.64, and the median across 2 tracked listings is $91.82. Comparing retailers can save up to 14% ($13.64) versus the highest-priced listing.
Compatible with: M4/AR, AEG
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Which hop-up unit fits AEG? Compare fitment & prices →