I bought a mesa tactical low tube adapter for my winchester and quickly took it off after shooting it for the first time. Now a great idea in a t-shirt. Now that I have this leftover part I thought Id do some experimentation with turning it into a buffered stock assembly like the knoxx stocks. What I would do is use a Vltor shotgun adapter tube (has an open ended buffer) and buffer springs to allow the stock to move along the tube. To do this I would mill out the position holes to create a track for the stock to ride on and use 2 options to cover the spring so it applies force to the stock after the recoil impulse. I could either adapt a plunger mounted on a buttplate to compress the spring or mill the stock to accept a tube that would wrap around the buffer tube (closed on one end to compress the spring) and mill a space for the position track to pass through. Im wondering if anybody has any knowledge of how much spring tention (length and pre-load etc) to take a shotgun recoil. While I know this isea sounds crazy, i figured it was a little project to play with. Any help would be greatly appreciated.