Steampunk: Flint lock Pistol -Finished.

I think that, for now, I've done all that I can think to, or know to, do on my Steampunk'ed Flint Lock Pistol.

I honestly don't know 'what' this extra piece is or it's function. A friend of mine let me go through his hardware-junk drawer and I found this piece. I rather like it on here.:)

So, consider this piece, for now...FINISHED. :D