Just throw your cash in the trash can - Monstrum Slim Profile Series Cantilever Offset Dual Ring Picatinny Scope Mount, 30mm

I bought one of these from another vender. Paint was flaking off straight out of the box. Scope rings don’t line up. IF you get the quick clamps tight enough to hold on to the rail, you almost break your finger closing it. I can’t even say this would be good for airsoft guns. Do yourself a favor and spend the extra $100 and buy a vortex or primary arms mount. You’ll thank yourself later.