Since I’ve came across this product I have been looking for a reliable non commercial test and review but so far there is only one by crazyNCman who only talks about it. He saying that the hop up didn’t do anything at all for him.
As I am currently rebuilding my g&p gearbox I’ve been looking into alternative parts which also include a new hop bucking. Currently I got a madbull shark bucking with h nub which I haven’t tested yet as the gearbox is still not assembled but in case I’m not happy with it I do want to have a alternative ready.
There are a few enhancements out there like the R-hop that can require modding to barrel and the product itself or G-hop which doesn’t require modding your barrel, which is always good if you don’t have the tools or workshop to do so.
I will try to do the G-hop mod as its fairly simple and if messed up you wont have a damaged barrel.