Monstrum Q Series Picatinny/Weaver Scope Rings with Quick Detach Lever

Excellent fit and finish

The QD rings work well. Already installed!

I needed a set of scope mounts for a project. I didn’t want to spend a lot of money on a set that would be used for mock-up. These fit the bill. They are sturdy and will do what I need them to do. Would I use them on a more quality build? Probably not. But they do fit the need for something to give me a good start for proper scope height, clearances, etc when looking for the ideal mount in a higher price range. The mounts are secure and stable when tightened down. The good part is it doesn’t matter if they get worn from use, that’s why I chose them for the price.

They work very good

Bought two sets of these after watching a video review from some hillbilly saying they were good. Since I'm a hillbilly too, I figured, what could go wrong? Used one set to re-mount a scope on my .308 as the rings on it had the scope practically laying on the barrel. Made operating the bolt a knuckle-smashing event. Didn't like that. These give it enough height that the bolt can be operated painlessly. That, I like. The .308 uses weaver rails, and while these do fit, they took a little persuading to get on correctly. Second set was to mount a scope on my S&W AR and this went much smoother with the picatinny rail on the AR. Doesn't raise it over the front sight, but the scope optics take care of that. Time will tell how well these hold up, but I'm happy with them.

I mounted a Vortex scope on my AR-15 clone with no problem using these rings.All that was necessary was to degrease the entire rings using some 91% isopropyl alcohol instead of acetone because the quick release levers are made of a type of polymer, then mount on the Picatinny rail with a drop of blue Loctite on each of the screws.Once the scope was in the rings and with the proper eye relief, I let the Loc-TIte cure over a day or two, then took it to the range, sighting in very easily and shooting satisfyingly small groups.It works exactly as it should, and it allows the option to quickly take off of the Picatinny rail without having to use tools.

These are nice rings for the price but the diameter of the bolt is too big to fit in the slot of Weaver mounts.

These are my favorite rings, easy to instal and quick release in just a few seconds allowing me to change scopes quickly for doing long range work to quick close moving targets and both scopes stay zeroed because of their quality craftsmanship ! Excellent price for the high quality !