HSA IER-Hop Z-kit

3-piece IER-hop kit (extended) for easy installation

€ 29,90
Price per unit

Stock :


According to the manufacturer, the purpose of the R-Hop patch is to produce an extended contact with the bb for more gentle and precise acceleration, resulting in longer, flatter trajectories which are far more accurate and more tolerant of inconsistencies within the bb. These extended patches allow for even longer contact with the bb. This facilitates extremely consistent spin and incredible accuracy on high mass ammo. IER-hops can technically be applied to most setups, however lower power guns shooting less than .3s tend to be touchy and tend not to showcase performance. For these reasons extended R-hops are only recommended for setups using  ≥.36g ammo.
The "I" in the name stands for “ice” and indicates cold weather tolerance, so the IER-hop works in effectively all temperatures. What sets the Z-kit apart from other R-hop kits is that each of the 3 patches is cut slightly differently to ensure that one of them is sure to fit your barrel correctly.

Please be advised that the installation of an ER-Hop requires extensive modification of the barrel.