The Regiment of Mounted Riflemen was authorized by an Act of Congress on Dec. 1, 1845 and was subsequently formed at Jefferson Barracks, Missouri in October 1846 under the command of the 1st Colonel of the Regiment, Colonel Persifor F. Smith. This brought into existence a new organization in the United States Army: a regiment of riflemen, mounted to create greater mobility than the infantry, and equipped with Model 1841 percussion rifles to provide greater range and accuracy than the muskets of the infantry or the dragoon's smooth bore carbines.

*Approx 50mm/2"diameter, chrome plated, zinc alloy, black enamel
*Attaches with 3M adhesive