Re: Picatinny mini riser
Sorry brother, but that's just a big ole' pile of FUBAR. I would ditch that crap and start fresh.
Adding another deck of risers to it is a band-aid to your core issue.
If you are just dead set of adding another part, a YHM Riser would probably work. I would not use the mini-risers. I would just use the regular riser. I keep one on hand if i have to swap a ringed optic onto an AR type platform.