Metal Hop-up Chamber M4 V2 with Bucking – SHS

SHS metal hop-up unit for M4/M16 AEG replicas with a V2 gearbox, supplied pre-assembled with adjustment linkage, bucking and barrel spacer. It replaces the stock hop-up chamber with a stiffer metal body that keeps the inner barrel well centred and holds the adjustment steady: a simple upgrade for more consistent shooting.

Features and technical specifications

• Manufacturer: SHS
• Manufacturer code: T-T0005
• Type: hop-up unit for M4/M16 AEGs
• Body: metal
• Compatibility: M4/M16 AEG replicas with V2 gearbox
• Assembly: pre-assembled and ready to use
• Package contents: hop-up chamber with adjustment linkage, red hop-up bucking, barrel spacer

Operation

The bucking puts backspin on the BBs, extending their flight, and the adjustment wheel lets you set it to suit the BB weight you use. The metal body does not flex under load the way a plastic chamber can: the bucking always sits in the same position and the effect stays consistent from shot to shot.

Installation

It is fitted by separating the upper and lower receivers and removing the inner barrel assembly, with no need to open the gearbox; the bucking goes onto the inner barrel before it is inserted into the chamber. As with the original hop-up, the adjustment is reached through the ejection port.