I couldn't figure out how to add commentary to the post above...this'll have to do.

Obviously made from a file. We have a prison in our county, but I've had this since long before it was built...picked up at a gun show locally..seller professed no knowledge. To me, the grip an' the amount of effort evident puts it out of reach for surreptitious manufacture in a prison setting...bwdik? Your comments are appreciated, an' Thanks!