monstrum lockdown series adjustable height picatinny riser mount with quick release | 2.5 inch monstrum raise your optic to the next level with the monstrum tactical lockdown series adjustable height riser mount! our exclusive adjustable height design allows for absolute precision placement of your optic based on your rifle setup or preferred cheek weld! the riser can be adjusted incrementally via two locking screws from 0.87 inches up to 1.14 inch of rise, measured from rail surface to rail surface. built for use with picatinny or weaver base optics, our mounts will give you just the right amount of rise for optimal scope positioning and clearance over your front sights. based off our best selling riser mount series, the new lockdown series riser mounts include a slimmer profile body and a quick release attachment mechanism. the mount attaches to your rifle quickly and securely via an adjustable tension quick release mechanism. it accepts all picatinny or weaver based scopes, red dots, or optics. all monstrum tactical lockdown series riser mounts come with a lifetime warranty.