Browning Picatinny Rail w/Bubble Level Features The Browning Picatinny Rail w/Bubble Level attaches to the X-Bolt or X-Bolt 2 Ultra Magnum action receiver with eight screws across a four-screw-per-base mounting platform for a solid secure lock-up. Machined from aircraft-grade aluminum alloy the base is engineered specifically to fit the longer action required for 300 RUM and 300 PRC chamberings. Its 1913 Picatinny design is compatible with both Weaver-style and Picatinny-style scope rings giving shooters flexibility in how they mount their optic. The built-in 20 MOA of elevation lets long-range shooters dial in significantly more drop compensation before running out of adjustment in their scope s turrets. An integrated bubble level is built directly into the base making it fast to level the rifle and the scope s crosshairs during setup and in the field. That leveling reference helps eliminate cant error a common cause of horizontal shot drift at extended distances. At 8 inches long and just 1.60 oz the base adds minimal weight while delivering a secure platform for serious long-range optics. For X-Bolt and X-Bolt 2 owners pushing their rifle s capability past typical hunting ranges this base and level combination is a purpose-built upgrade. Browning Picatinny Rail w/Bubble Level Specifications Manufacturer: Browning Model: Picatinny Rail w/Bubble Level Color: Matte Black Material: Aluminum Compatible Hosts: Browning X-Bolt / X-Bolt 2 300 RUM 300 PRC Ultra Magnum Action Mount Type: Anti-Cant / Picatinny Rail / Weaver MOA: 20 Length: 8 Height: 0.60 Weight: 1.60 oz Includes: Mounting Hardware Available At: GrabAGun