Description
60mm M5 Mortar Fin Restored with Black Paint
This inert 60mm mortar fin assembly is the type associated with the M5 and M5A1 ignition cartridges used in early American mortar ammunition. The steel component features a hollow central shaft and four double-bladed fins. It has been restored with black paint for preservation and display. The finish is a later restoration and may cover earlier wear, markings, or surface discoloration.
Design and Function
The fin assembly threaded into the base of a 60mm mortar projectile and kept the round stable during flight. Its hollow shaft held the ignition cartridge and percussion primer. Removable propellant increments were placed within the spaces between the fin blades when more range was needed. This listing is for the inert fin component only and does not include a projectile, live primer, ignition cartridge, or propellant.
M5 Ignition Cartridge History
Period U.S. Army manuals list the M5 as an ignition cartridge rather than a separate model of fin. The M5 was an early design that was replaced by the improved M5A1 during World War II. These cartridges were installed inside the fin assembly and started the firing process when the mortar round struck the weapon’s firing pin. Collectors often use the term “M5 mortar fin” for a fin associated with this ignition system.
Ammunition and Weapon System History
This style of fin was used with several early 60mm mortar rounds, including M49-series high-explosive ammunition, M50-series target-practice ammunition, M69 training projectiles, and M83-series illuminating rounds. These cartridges were commonly fired from the U.S. M1 and M2 60mm mortars. The M2 was a portable, smoothbore weapon designed to deliver high-angle fire against positions hidden behind hills, trenches, walls, and other cover.
History of Use
The M2 60mm mortar was based on a French Brandt design and became a standard American infantry-support weapon before World War II. U.S. forces used it widely during World War II and the Korean War, and it remained in service during the Vietnam era. Its light weight and simple operation allowed infantry units to carry responsive fire support into areas where larger artillery could not easily travel.
Collector Appeal
This restored fin offers a clear example of the construction found on early American 60mm mortar ammunition. Its compact size, recognizable blades, black-painted finish, and connection to several historic mortar rounds make it well suited for an inert ordnance collection, military display, museum exhibit, or educational reference.
Approx length 2.5", Approx width 2.5", Approx height 2.5", Approx weight lbs.
Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item’s general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.
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