Maxx Model CNC Aluminum Hopup Chamber (M4Gi)

The Maxx Model CNC Hop-Up Chamber M4GI is precision-machined from high-quality aluminum and specifically designed for ICS M4/M16 AEGs of the CXP, CS4, and EBB series. It ensures a reliable air seal and precise, consistent firing performance.

For precise hop-up adjustment, the chamber features a finely detented aluminum rotary knob, a precision-machined hop-up lever, and various hop-up nubs. In conjunction with compatible GBB hop-up rubbers, it enables a consistent trajectory and high shooting accuracy.

An interchangeable inlet adapter ensures precise centering of the hop-up chamber to the ICS gearbox nozzle and reduces unwanted play. CNC-machined brass side wings provide precise guidance in the outer barrel, while a CNC-machined Delrin C-clip securely fixes the inner barrel and prevents slippage or twisting.

Another highlight is the integrated BB retention system, which prevents BBs from falling out of the hop-up chamber after the magazine is removed. Remaining BBs can be manually released via the locking lever if needed.

Compatible with:

ICS M4/M16 CXP series

ICS M4/M16 CS4 series

ICS M4/M16 EBB series (including older models)

Maple Leaf Wonder GBB Hop-Up Rubber

Maple Leaf Super GBB Hop-Up Rubber

Additional GBB hop-up rubbers (the centering surface may need to be adjusted or flattened)

Important note: This hop-up chamber is not compatible with standard AEG hop-up rubbers. A GBB hop-up rubber and a GBB inner barrel are required for operation.

Scope of delivery:

1 × CNC aluminum hop-up chamber M4GI

2 × CNC acrylic side covers

2 × CNC brass side wings (2.5 mm)

1 × CNC steel axle pin

1 × CNC aluminum hop-up lever

1 × CNC Aluminum Soft Round Nub

1 × CNC Aluminum Soft Flat Nub

1 × CNC Aluminum Hard Concave Nub

3 × steel springs for the nubs

1 × CNC steel spring guide

1 × Upper compression spring made of steel

1 × Medium compression spring made of steel

1 × CNC Delrin Locking C Clip

1 × CNC Brass Barrel Spacer

1 × O-ring for the running spacer

1 × CNC Aluminum Rotary Knob

1 × CNC Aluminum Inlet Adapter

1 x Shim Set

1 x O-ring set