Check the listing for details. Browning X-Bolt Max Accessory Rail. Condition: New. Listed at 61.60 USD. Browning X-Bolt Max Accessory Rail Picatinny-pattern mounting rail for bipods and other accessories Machined from aircraft grade aluminum alloy Integral sling attachment eyelet Easily installed on underside of the X-Bolt Max stock fore-end Mounting screws and instructions included