Snowy Mountain Rifles XM length action bottom metals are 100% USA made in house in their Montana facility. These M5 Oberndorf bottom metals fit Defiance XM actions and stocks with Snowy Mountain XM BDL inlet. They are made from a billet of 6061 aluminum and carry the snap fit lid closure system that is guaranteed to never open under recoil. Anodized for black color. Not compatible with XM Plus length actions.