CNC Aluminum Hopup Chamber M4Gi (for ICS M4)

Price: $79.99 – $93.00 — In stock at 2 retailers.

Prices last checked July 29, 2026 across 2 retailers.

CNC Aluminum Hop-Up Chamber M4Gi (with BB Latching System) unit is precisely machined to perform accurately and consistently on ICS M4 AEG series rifles. The Hop-Up Chamber M4Gi unit is built with an aluminum rotary dial knob for fine hop-up adjustments, the precision hop-up lever and 4mm bucking nubs to perform best with R-Hop and standard-hop to keep the BB shooting accurately and consistently on every single shot. The Hop-Up Chamber M4Gi unit is designed to accept 21.00mm to 21.25mm nozzle length, and fully compatible with most aftermarket soft and hard rubber buckings without losing FPS or dropping BBs during use. The Hop-Up Chamber M4Gi unit is wisely equipped with an interchangeable Inlet Adaptor OD12mm to ensure the hop-up unit is inserted exactly in the center of the 12mm inner bore ICS AEG outlet without wobbling. Also mounted the removable CNC brass side wings to slide smoothly into the outer barrel slots, and included an advanced CNC Delrin locking C-clip to hold the inner barrel tightly in place without wobbling and twisting. Additionally, the Hop-Up Chamber M4Gi unit is specially designed with a new BB Latching System to prevent BBs from dropping after removing the magazine. The Latching Arm can also be manually pressed to release the remaining BB from inside the hop-up chamber.

CNC Aluminum Hopup Chamber M4Gi (for ICS M4) price comparison: the lowest price is $79.99 at Airsoft Atlanta, the highest is $93.00, and the median across 2 tracked listings is $86.50. Comparing retailers can save up to 14% ($13.01) versus the highest-priced listing.

Compatible with: M4/AR, AEG

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