I've got a proof research MTR rifle stock in a long-action bighorn origin inlet. These stocks are custom made hand-laid carbon fiber stocks made specifically for their mtr rifles. These are not available on the market, and you can only get them on their MTR rifles. I had it cerakoted black, and it is coming with an atlas rail. They are inleted for their Sendero light profile barrels but should fit an m24 contour steel barrel. 550$