The Warne Mountain Tech 20M0A Browning X-Bolt tactical rail from Warne Scope Mounts is a firearm-specific fitment designed and manufactured in the United States to fit a Browning X-Bolt LA 20 MOA (7642-20MOA) center fire bolt-action rifle. This Warne Mountain Tech tactical rail for the long-action Browning X-Bolt will hold zero is NATO/STANAG-compatible and will accommodate Picatinny-style rings. Our Browning X-Bolt Picatinny rail which comes with tapered 6-48 screws creates a consistent mounting platform. With self-centering hardware and aerospace-grade materials our Warne Mountain Tech rails provide a lightweight and robust platform for your Browning X-Bolt rifle model. Fits: Browning X-Bolt LA will not fit magnum actions including 300prc. Mount to receiver with 6-48″ Length Tapered Screws.