Evolution of firearms By MohammadUsman Sep 23, 1232 chinese invent gunpowder Sep 23, 1364 First recorded use of a firearm Sep 23, 1400 Matchlock guns Sep 25, 1509 Wheel lock Sep 25, 1630 First TRUE Flintlock gun Period: Sep 25, 1750 to Sep 25, 1850 Dual Pistols Sep 25, 1825 Percussion cap guns tube to gun barrel and it had an explosive cap that exploded when struck Sep 25, 1835 Colt Revolver, first revolving firearm Sep 25, 1850 Shotguns Sep 25, 1862 Gatling gun was invented Sep 25, 1903 First Automatic Rifle, Winchester Rifle