The Browning X-Lock Integrated Rifle Scope Mounts ensure that your favorite riflescope stays securely attached to your favorite firearm. Featuring an all new X-Lock scope mounting system that uses four screws per base, replacing the traditional two-screw system, these Riflescope Rings from the industry experts at Browning allow for your most perfect fit yet, The benefits are that the scope bases are being secured at all four corners rather than only held at the center of the base, allowing for more accurate placement of the Browning X-Lock Integrated Rifle Scope Rings on the receiver. This revolutionary X Lock system holds your Browning Integrated Scope Rings tighter to the rifle than ever before, ensuring that you always get quick zeroing and the best possible accuracy.