MDT XRS, Rifle Chassis, Matte Finish, Flat Dark Earth, Fits CZ 457 105051-FDE The XRS Chassis is designed for shooters that want the fit and feel of a traditional shaped rifle stock with the benefits of a modern precision rifle chassis system. Each XRS Chassis is constructed from a full-length CNC machined core of 6061 aircraft grade aluminum wearing high strength textured polymer panels for insulation from the elements. The precision aluminum V-block bedding system ensures fit and function to maximize the accuracy of any rifle action. The XRS Chassis features a replaceable over molded and textured grip system" with both an angled grip and a vertical grip included in box. The XRS Chassis is the most advanced and configurable crossover stock on the market and is the ideal performance upgrade for any factory rifle or foundation for a custom rifle build. Weighing in at 3.9lbs (depending on inlet)" the XRS is ideal for both hunting or target rifles. The XRS features adjustable length of pull via spacers from 13.25" to 15+" and a quick adjust cheek piece to adjust for scope height over bore. The generous 12" long Forend comes with M-LOK slots built in for accessory mounting and attachment of ARCA or picatinny rails.