The buttstock is reverse compatible with all previous Ruger Precision Rifle generations and is also compatible with other firearms with MIL-SPEC buffer tubes. It includes a QD sling pocket that supports attachment of a sling for convenient carrying and an M-LOK slot on the flat bottom to support the installation of a bag slider for optimal rifle positioning. The stock has no sharp edges or corners for enhanced comfort. The stock is constructed from steel, aluminum and nylon with hard-coat anodized and nitride finishes for strength and durability and weighs 1.8 lbs. This Genuine Ruger Factory Accessory is made in the USA.Features : Fits Ruger Precision Rifle Adjustable Length of Pull Adjustable Comb Height Adjustable Recoil Pad Compatible with Mil-Spec Buffer Tubes