The Bridesburg Model 1861 was a common gun during the Civil War. It had a 40-inch barrel and three equidistant bands. It's a single-shot rifle. It recieved its name from where it was made, Bridesburg, Pennsylvania.
The Henry Model 1860 was a lever-action rifle. These types of rifles were good during the war because it would change the clip with a pull of a lever. This rifle is a .44 caliber.
The Sharps Model 1867 is also considered a Carbine rifle. The Sharps Model is a single shot rifle with breech-loading. It is a .50 caliber and has a wooden grip.