Too late!!!! maybe. I welded on a fixed 1/4" buttplate but I couldn't get a nice weld to save my life. I'll have to grind out a lot of the weld and try it again. There is actually an extra 4" that is all buffer and retainer space so I might just cut the stock off and make another one which would put it at the same length of pull as an A1. I think I'm just going to take the front sight off completely and just use the scope/red dot mount for sights as the original suomi sight is going to be about an inch and a half too low unless I change it. I had though about a ar type retractable stock until I laid out the path of the charging handle slot. Since the handle is at the back of the suomi bolt it makes the charging handle pretty far back as well. If I make another one I may look at putting the charging handle up closer to the front of the large diameter of the bolt or even add a collar to the back of the small diameter bolt section and run the holt handle above the firing pin channel. With those changes I could make a M4 type stock and make the receiver more compact by using a car type length spring and spring guide/buffer.