Abstract: A hand warmer for use with a long gun or crossbow having a sleeve of fabric configured to circumvolve a user's forearm. A user inserts his or her forearm at the second end of the tube. The first end of the tube is configured to attach to a long gun or crossbow. The first end can be configured with a section of fabric that fits between the barrel and pump action of a pump action shotgun. The first end can be configured to attach to the forend of a crossbow such as by hook and loop fastener, snaps, or zippers. The first end can be configured for positioning over the barrel of a rifle such that the first end is below a line of sight through a scope attached to the rifle.