The Crosman model 1377 (also known as the "American Classic") is a single-shot, bolt-action, pneumatic .177 caliber pellet gun, featuring a rifled steel barrel and imitation wood checkered plastic grips. The 1377 was introduced in 1977, and has been in continuous production ever since. A separately available shoulder stock (which Crosman designates model 1399) converts the rather long pistol into a carbine. The 1377 is not a competition level target airgun, but its long rifled barrel makes it fairly accurate.