The M4W CNC aluminum hop-up chamber is made to perform accurately and consistently on the HPA MTW Milspec, Forged, Billet and MTW-9 series. It features an aluminum rotary knob for fine hop-up adjustment, a precision lever, and a 4mm strutnuts (6 mm struts are optional) to work best with the R-Hop and Standard-Hop to maintain accurate BB shooting. The M4W hop-up chamber is designed to accept the HPA MTW Engine M4 nozzle length and is fully compatible with most soft and hard rubber accessories without loss of FPS or BB drop during use. It features a self-centering input O-ring to ensure that it is inserted exactly in the center of the 11mm to 11.5mm inner bore of the HPA Engine nozzle without wobbling.Mounted removable CNC brass side wings ensure that they slide smoothly into the outer barrel slots. Includes CNC Delrin Locking C-Clip that holds the inner barrel firmly in place without wobbling or twisting.

Overall Length: 51.15 mm
Overall Height: 22 mm
Inlet Diameter (to fit into HPA nozzle outlet): 11 mm to 11.5 mm
Outer hub diameter (to fit into outer barrel): 12 mm
Inner hub diameter (by nozzle): 7 mm

Includes:

1 x CNC aluminum MXW Hopup chamber
2 x CNC brass 2.6 mm side wing
1 x CNC steel pivot pin
1 x CNC aluminum Hopup lever
1 x CNC aluminum meatflat pressure plate (4 mm)
1 x steel spring
1 x CNC Delrin Locking C-Clip
1 x CNC brass barrel spacer
1 x brass barrel O-ring mount
1 x CNC aluminum swivel knob

Compatible with most HPA MTW Milspec, Forged, Billet and MTW-9 series.

Weight: 40g

Materials: Aluminum