Ultradyne UD Picatinny Stock Coyote Tan. Designed for shooters who demand precision modularity and reliable fit the UD Picatinny Butt Stock is a purpose-built stock that attaches quickly to any 1913 Picatinny rear mounting interface and pairs exceptionally well with our UD Picatinny Chassis. Machined from a solid billet of 6061-T6 aluminum the stock offers smooth repeatable adjustments for cheek height and length-of-pull so you can dial in consistent eye-to-optic alignment and shoulder mount. Choose the fixed model for a stream-line lightweight option or the folding model for the ultimate compact carry and storage solution. Cerakote finish optional bag rider and made in specialized factories this stock makes your build more modular easier to pack and faster to configure in the field. Specifications for Ultradyne UD Picatinny Stock: Manufacturer: Ultradyne Finish: Cerakote Length: 12.71 in Features of Ultradyne UD Picatinny Stock Attachment Method: 1913 Picatinny Adjustable Features: Length of Pull and Cheek Weld Foldable Option Available QD Sling Mount Tension knobs for zero rattle Package Contents: Ultradyne UD Picatinny Stock Installation Hardware Included Ultradyne UD20167-CT: UD Picatinny Stock Coyote Tan