Trapdoor Rifles

Thank you for the responses, I've got it soaking in pb blaster and sitting on top our wood pellet stove. it don't get warm enough to even melt plastic so I'm not worried about to much heat, but figured it couldn't hurt. The pin is sticking out in the fire position and recessed in were the hammer hit...

I just purchased an 1884 trapdoor from my neighbor. missing a front barrel band spring, barrel band and cleaning rod, but the main issue is the brass firing pin is stuck in the firing position. removed the breech, tore it apart and have had it soaking (completely submerged) for a couple days in pb b...