Primary Arms Classic Scope Mount Features The Primary Arms Classic Scope Mount is a one-piece ring design machined from aluminum built to secure 30mm riflescope tubes directly to an M1913 Picatinny rail. This single-piece construction improves rigidity compared to separate base-and-ring setups helping the scope hold zero under recoil. The mount positions the scope s centerline 1.5 inches above the rail a height chosen to work well with the flat-top profile common on AR-15 and M4 pattern rifles. With 2.52 inches of clearance between the rings there is ample room to accommodate larger objective bells or mounted accessories. A matte black hardcoat anodized finish provides durable protection against scratches moisture and daily wear in the field or at the range. At just 8.2 ounces the mount adds minimal weight to a rifle build while still delivering a secure reliable clamping force on the scope tube. Primary Arms backs the mount with a lifetime warranty reflecting confidence in its long-term durability. Shooters building out an AR-15 with a 30mm scope will find this mount a dependable properly-sized solution for their optic setup. Primary Arms Classic Scope Mount Specifications Manufacturer: Primary Arms Model: Classic Scope Mount Scope Tube Diameter: 30mm Color: Black Material: Aluminum Finish: Hardcoat Anodized Mount Type: M1913 Picatinny Rail Height: 1.5 Weight: 8.2 oz Compatible Hosts: AR-15 Available At: GrabAGun