Browning X-Bolt 20 MOA Picatinny Rail with Anti-Cant Indicator

  Browning X-Bolt Picatinny Rail – Product Dimensions and Weights  comes with mounting screws Action Rear Height 1 Hole2 1 ↔ 2 Hole 2 ↔ 3 Hole 3 ↔ 4 Front Height 1 Overall Length Weight Super-Short Action .539″ .700″ 2.825″ .700″ .435″ 5.761″ 1.9oz. Short Action .537″ .700″ 2.942″ .700″ .437″ 6.155″ 2.2oz. Long Action .537″ .700″ 3.694″ .700″ .433″ 6.863″ 2.4oz. Magnum Action .539″ .700″ 3.930″ .700″ .433″ 6.965″ 2.3oz.   1 The height is measured at hole 1 and hole 4 ; from the top of the action to the top of the rail. 2 Hole 1 is closest to the shooter and hole 4 is closest to the muzzle. Picatinny Rail hole spacing measured center to center. Note: The Magnum rail is for magnum length actions. Current calibers in the magnum length action are .300 PRC, .300 RUM, & .375 H&H. The Super-Short Action is for the .223 Rem, .22-250 Rem, .223 WSSM & .243 WSSM