Boneyardish sr25 Never used Polymer upper Polymer lower Stock gearbox m4 compatible internals Shs nozzle Shs high torque motor Doesn't come with grip Vinyl wrapped don't like just peel off good as new👍🏽 Receiver comes with split hopup Modified to fit normal hop units Great platform to start your DMR build Will send outter barrel for free if wanted No barrel nut Have vid of it cycling