MAXX Hop-up Chamber Soft Flat Nub

My order arrived on time and well packed . MAXX hops, in my opinion are one of the best on the market. They have several different nubs from a hard concave to soft flat and can accommodate a R hop or normal bucking . Comprehensive fitting instructions . Very straight forward to fit and fine adjustment. I now have three of them in my RIFs including my HPA setup . Thanks, five stars