This is a 4 shot percussion cap black powder pistol with a vintage Bob Allen soft gun case. It originally comes unassembled and you put it together yourself. I believe it is a 34-36 caliber, made after the 70's but still considered an antique firearm. Please text me at my # listed or message me here, but I'll be honest I don't check my messages on here often so texting would be best. Thank you for your interest in my listing! Any questions please ask, serious inquiries only!!