Tier One Monomount Cantilever - 30mm High 6MIL/20MOA Black. Engineered to 3 microns tolerance it far exceeds industry standards for precision in manufacture and long range shot repeatability ensuring tight groups and consistent accuracy. Tier Ones unique single-operation machining process eliminates retooling inaccuracies found in other optic mounts. The Cantilever is built for heavy recoil compatible with 30mm to 36mm scopes and features an anti-cant bubble. Optional mounting rails add versatility. Lightweight with excess material cut away yet extremely durable and with a lifetime warranty against defects it's designed for those who prioritize first-shot accuracy in demanding environments. Specifications for Tier One Cantilever Monomount: Manufacturer: Tier One Fabric/Material: Aluminum Color: Black Ring Height: Medium Features of Tier One Cantilever Monomount Engineering and machined to 3 microns tolerance (0.00011811") - your rifle action is machined to 50microns for comparison Machined in a single operation - zero accuracy loss for machine retooling/resetting (this is unique to Tier One Scope Mounts) Large scope clamping area to withstand heavy recoil Mil-Spec 30 micron hard anodised finish Built in Anti-Cant bubble Bolt on accessory rails available for ring caps Package Contents: Tier One Cantilever Monomount Scope Levelling Wedge Torx Bit Tier One T1MUC-30381H6: Monomount Cantilever - 30mm High 6MIL/20MOA Black