SHS Split Mound A&K Advanced Hopup Bucking

This bucking is very well made. Great material too. The split mound is proven to give better accuracy, range, and consistency. Just keep in mind that this bucking is only for A&K M249s (and I believe) A&K SR25s. It will not work in regular hopups. 5/5 for the bucking. However, the description needs to state that it's not for regular hopups.