Griffin Armament GPM Cantilever Scope Mount Features The Griffin Armament GPM Cantilever Mount is machined in house from lightweight aircraft grade 6061-T6 aluminum giving it the strength needed to hold zero under recoil while keeping overall rifle weight manageable. Built for a 30mm scope tube the mount uses a cantilever design that positions the optic forward for proper eye relief on rifles with long receivers or bullpup configurations. At 1.335 inches in height it provides enough clearance to clear most handguards and iron sights while still keeping the optic at a comfortable cheek weld height. The mount s hardcoat anodized black finish adds corrosion resistance and a durable surface that resists wear from repeated mounting and dismounting. A unique dowel pin alignment system sets this mount apart enabling compatibility with Griffin s Accessory Interface Suite of products across five separate mounting surfaces including the top left right and 45 degree offset positions. This patented design splits the rings onto two parallel but offset planes giving shooters ambidextrous flexibility for mounting lights lasers or backup sights alongside the primary optic. The complete kit includes all necessary ring clamp and rail clamp fasteners an Allen key a shim set for proper gap setting and a full instruction manual. At just 10 ounces the GPM Cantilever Mount offers a lightweight yet highly configurable mounting platform for serious rifle builds. Griffin Armament GPM Cantilever Scope Mount Specifications Manufacturer: Griffin Armament Model: GPM Cantilever Mount Tube Diameter: 30mm Color: Black Material: Aluminum Mount Type: Cantilever Finish: Hardcoat Anodized Height: 1.335 Weight: 10 oz Available At: GrabAGun