Okay you're stressing an already stressed memory. I believe it will drop into all stocks. Mine is a late pot belly stock and it dropped right in. Do some google-fu and research it a little.spwenger, Couldn't get your site to open but the receiver is an Underwood #284xxxxx and the stock is a low, oval cut Trimble Nursery (TN). The stock inletting is a perfect fit for the top of the recoil plate and there's no cracks or weakness. The recoil plate doesn't move.
Keven Gibson, Will the Type III plate require any stock inletting modification or is it designed to fit all GI stocks?