100% Risk Free, Lifetime Warranty Raise your optic to the next level with the Monstrum Tactical Lockdown Series Riser Mount! 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 feature a slimmer profile body. The single piece machined aluminum profile is designed to shave off precious ounces of weight, making it our lightest and sturdiest riser mount yet. The redesigned locking nut fastens securely via hand, screwdriver, or wrench and is guaranteed to hold zero against the heaviest of recoil. Available in High (0.92 in), Medium (0.67 in), and Low (0.42 in) Profile. Includes: 3 Slot High Profile Lockdown Series Riser Mount Materials: 6061 Aircraft Grade Aluminum Compatibility: AR-15, Rifles with Picatinny rails Weight: 2.8 oz Length: 1.75 in Profile: 0.92 in (High) Color: Black Warranty: Lifetime