Lightly used Manners SL Superlight with carbon fiber shell. I got this stock used but it is excellent condition. Inletted for rh 700 Short Action, M5 Bottom metal, and barrel channel looks to be around a Number 3. A remington sporter and magnum barrel seemed to fit just fine also. 13.5" lop. 1" Decelerator. Aluminum pillars. 27oz on my postal scale. There is a small pad of bedding compound under the barrel shank, but that can be easily removed if in the way.