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Original U.S. WWII Inert MkII Pineapple Grenade with Yellow Ring & M10A3 Fuze

Item Description

Original Item: Only One Available. Totally inert and demilitarized according to BATF guidelines with hollow body and inert fuse. This grenade cannot be converted to an explosive devise and is not available for export.

This is an iconic U.S. fragmentation pineapple grenade issued during WWII. The Mk II was standardized in 1920 replacing the Mk I of 1917. It was phased out gradually, the U.S. Navy being the last users, on 2 April 1945 the Mk II and Mk IIA1 were re-designated the Mk 2 and Mk 2A1.

The Mk II was commonly known as a pineapple grenade, because of its shape and structure. Grooves were cast into the cast iron shell, which was believed at the time to aid in fragmentation and had the side benefit of aiding in gripping the grenade - this provision gave it the appearance of a pineapple fruit.

Pre-WWII high explosive-filled Mk 2s were painted bright yellow. During wartime (from about 1943 and after), yellow grenades were over-painted in olive drab, leaving a narrow yellow ring remaining at the top. Newly produced grenades were painted olive drab, and had a yellow ring added later. Not all were over-painted, however, as D-Day film footage shows.

Igniter- M10A3. In 1943 this designation was adopted to differentiate this model with the M10A3 fuze from the grenades with earlier fuzes. Declared limited standard on 6 April 1944 with the adoption of the Grenade, Hand, Fragmentation, TNT, Mk. II.

The Mk.IIA1 could be found with either the earlier body with a filling hole or the newer body without filling hole. It was up to the manufacturer which body style was used. The grenade is fitted only with the M10A3 fuze mechanism. The filling is 0.74 ounces of EC Blank fire powder.

The grenade is painted olive green with a yellow band around the top of the body or in full yellow for earlier war grenades. The fuze mechanisms are not painted but the levers may be colored green. Markings on the top of the lever give the designation of the fuze mechanism. The grenades were shipped fuzed in boxes containing 25 grenades. Each grenade is separately contained within an M41 container.

This very nice WWII issue grenade bears all original green paint with a yellow ring painted at the top, which is retained at about 50%, with almost all the paint on one side missing. It does not show any signs of having been repainted during service. It comes equipped with the correct original M10A3 fuse and pin, with the correct WWII style "spoon".  It is offered in very good condition. This is the later war type of grenade without a bottom plug. There are also still visible maker markings on the side of the body.

Genuine examples with an intact correct fuze and paint are extremely hard to find on the market today. Ready to display!

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