Raimey, I think we may be talking about the same part on the action. Its real name is the "Drop" made fitted & regulated by the Ejectorman. It regulates the "drop" of the Barrels when the top-lever is opened. I will talk to Rev Drew to see if he would be kind enough to post a couple of "Pics" for me .I have just replaced and modified 2 JP&S 12b...cc/dt