The Palmer model 1865 carbine is a single-shot bolt action rifle patented in 1863 by E. G. Lamson and Company of Shelburne Falls, Massachusetts. 1000 Palmer carbines were delivered to Union forces in the American Civil War one month after the war ended. All rifles (designed to be carbines for cavalry soldiers) were subsequently sold to civilians after the war. The rifle was the first bolt action rifle to be accepted for use by the US Army Ordnance Department.