CNC machined AK HopUp chamber. This hop unit can be attached to the front of the gearbox directly for testing purpose outside of the body of the AK. The unit is supplied with some small parts including a barrel lock, brass barrel spacer and pins. The unit comes with a ZCI enhanced Hop-Up bucking. The classic design of this hop units features a sliding adjustment bar – The tension of the bar can be adjusted using the small set screw located on the side of the unit.
Please note that the colour of the anodised on the unit can vary subject to stock levels (Red or Blue)