This is a standard aerial training shotgun with a single raised brass bead on the barrel, with "P/ bomb" and "* * * *" marked on the left side, with an additional "P" closer to the top, improved cylinder choke and 2 3/4 inch chamber. A "P" stamp is present on the frame, mirroring the one on the barrel, with "P/ bomb" next to "U.S." on the left side, "3" on the lower tang, and ribbed sighting groove on top. Smooth pistol grip stock with grooved forearm, tiger striped buttstock, and serrated buttplate.