Ha ha! I've seen this one and think it resembles a Club-butt musket that I have given serious consideration towards building. I totally have my mind set on doing a scratch-built left hand Spanish Escopeta first! It's interesting to see on the lock what appears to be a catch that pops out of the lock plate at half cock. While I have not done business with The Rifle Shoppe before, I hear that they are a frustrating company to order from, as people have had to wait a year or 2 for their parts to arrive.