Maxx Model CNC Aluminum Hopup Chamber (M4EI)
The Maxx Model CNC Hop-Up Chamber M4EI 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 consistent air seal and precise, even firing performance – even with older ICS models.
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. The design supports both standard hop-up setups and R-hop configurations, ensuring consistently high accuracy with every shot.
The hop-up chamber is compatible with most soft and hard hop-up rubbers for AEGs and ensures a reliable air seal without loss of power or unwanted BB loss during operation.
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)
Standard AEG hop-up rubbers
Scope of delivery
1 × CNC aluminum hop-up chamber M4EI
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 × O-ring set
