After my recent conversion on my Saiga 308, in which I used a Choate drag stock, I was left without a cheek piece to raise cheek weld for optics.
I found a cheek piece of an ATI Mauser stock, that screwed on, but I wanted it to be removable without tools, for iron sight shooting, this was my solution.
I used 1/4" multi hole hitch pins thru the cheek piece, had to file the holes out a little bit with a chainsaw file, but left them real tight so the pins wont fall out, the screw holes in the cheek piece were already countersunk, so the heads of the pins are hidden and out of the way.
I marked and drilled the stock where I wanted the piece, leaving these holes rather snug also, though not as tight as those in the cheek piece.
I used hitch pin retainer clips to hold the cheek piece on the stock.
Next, I marked and drilled the bottom of the stock, so I can keep the piece with the rifle, even when I am shooting open sighted, and it can be moved from top of stock, to stowed on bottom without tools.
I have got into many shooting positions, and nothing seems to be in the way, I will probably take the pins out and cold blue them at some point.
