The Linear-Centering patch design offers superior accuracy and range, even when compared to R-Hop setups!
 
Great for BBs weight up to 0.43g and 500 fps !
Slight fps/joule loss up to 0.2J for BBs weight above 0.32g
 
Please note that you may have to trim the back of the hop rubber in tight setups, especially Tokyo Marui NGRS chambers