The Springfield Model 1812 is a .69 caliber, flintlock musket manufactured by the Springfield Armory. The War of 1812 revealed many weaknesses in the earlier Springfield Model 1795. The Model 1812 was an attempt to improve both the design and manufacturing process of the musket. The design borrowed heavily from the French Charleville Model 1777. The Model 1812 arrived too late to be of use in the War of 1812 but would later become standard issue to regular infantry and militia units.