Securely mounted optics are essential to the accuracy and precision of any rifle. To ensure the new X-Bolt rifle has the most stable mount possible, it features the X-Lock scope mounting system. The X-Lock system uses four screws per base, replacing the traditional two-screw system. The benefits are obvious, with the scope bases being secured at all four corners rather than only held at the center of the base. This allows for more accurate placement of the bases on the receiver. This revolutionary X-Lock system holds the base tighter to the rifle than ever before.