Having a firing pin to explode the cartridge.(adjective)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "pin-fire" in a sentence
"Their striped jumpers were stained with red clay and sweat, and the tall man had a pin-fire revolver stuck in the top of his trousers."
"The little, low-powered rimfire and pin-fire cartridges date from the decade before the American Civil War, but they were nowhere nearly as common as percussion-fired, muzzle-loading blackpowder guns."
"Zalu Zako with a duplicate of the pin-fire revolver."