Monstrum Adjustable Height, Adjustable MOA, Picatinny Scope Rings | 30 mm Diameter | Includes 1 inch Diameter Inserts

Great rings to use for scopes that cannot handle the MOA rails. It allowed me to use my Athlon bench rest scope on a 30MOA rail in my Ruger Precision Rimfire 22lr due to its limited 45MOA total elevation. I had to counter cant the scope mount. Just FYI, the max MOA rail your scope can handle is approximately half its total elevation (45/2=22.5MOA). Account for +/- 10MOA for other tolerances/imperfections in your rifle. Yes, our rifles can easily be off by that much. Eg. I tried counter canting my 30MOA rail with a 20MOA one piece scope ring mounted backwards to Net a 10MOA cant, and this allowed me to zero my Athlon. Even though I had approximately 22.5MOA of elevation adjustment, I almost bottomed out my scope. Which means I used around 21MOA to zero it despite just the 10MOA of total cant. With these adjustable rings, I was able to zero my rifle at 55yds while keeping the elevation turret near the center. There seems to be a little flex when pressing the scope down from its objective lens compared to a one piece mount but I don't foresee any issues since the recoil is fore and aft. For a 22lr or PCP/C02 airguns, the two screws that compress or sandwich the aluminum tang to tighten and adjust the heights will probably hold, but I would be more reserved on using this on high recoiling guns. Its just friction fit. Overall machining on this set seems pretty good from Monstrum, although I had an issue with their one piece inline rings. Great rings for its flexibility.

Worked great once I got them all on the rail. Once on the rail then that's when to start to adjust. Easy adjustment and I got my boresight all done ready for the range.

Great Product at great price. These are easy to use and very strong. I would say it would be my go to for any air gun. I got my scope elevation adjustment at "0" and sited in. I am going to keep another set on hand. Torqued all screws at 30" pounds, seemed perfect. Tip: I would lube bottom of all screw heads before installing to prevent binding. Awesome product.

Nice scope rings. They don't fit the rail on my remington 11 87 slug barrel though. They only fit picitinny rails because of the two screws that hold the base to the rail.

Work perfect doesn’t feel cheap

These ring helped with my .22 shooting at more then 250 yards. They helped me get more clicks out of my scope and still got to zero at 50 yards. Money well spent.

These rings are very sturdy and work great at adjusting the scope height. But also they work great for someone who needs to add elevation to their scope too, or even drop some elevation to correct a scope with not enough reticle travel for long range shooting. By loosening both mounts you can cant the scope up or down instead of ordering canted rails.

Installed these rings on an air rifle that was shooting very low and I had run out of upward adjustment . After a few attempts, I was able get on target and have plenty of upward elevation adjustment. I think these ring work well on air rifles since the range of MOA adjustment is so large and gives greater versatility than a fixed MOA base. I'm not sure how well they would work on anything more powerful than a .223, but they work well for me.