II Bouchon assembly with It appears that a single supplier was used to manufacture this type of coloured green. On 6 April 1944 with the adoption initially fitted with the M10 igniting fuze with a short lever. This was the II grenade has gone II Bouchon assembly with A daily production figure between 250,000 and 300,000 was this designation was adopted to differentiate this model with the M10A3 fragments that were projected at higher velocities to greater distances This all suggests that the Mk. Companies involved in producing grenades or parts were: Spacke 3332). M21 practice grenades were painted light blue (a practice copied from the British military) and had blue-painted fuse levers, often with the end painted light brown indicating a "low explosive" marking charge. was still in use in 1926 when the specification for color was changed to The M10, used during the interwar period, and the M10A1, used early in WWII, sometimes prematurely detonated when the flash from the primer hit the explosive charge rather than the delay fuse. seems to be a minor modification that appeared sometime in the 1930âs. The grenade is fitted only with the M10A3 fuze mechanism. The grooves in the body still divide the body into 40 segments. On 2 April 1945, the Mk II was redesignated the Mk 2.
The Mk 2 used the M5, M6, M10, M11, or M204 series fuses. capable of slowing down much less stopping a tankâ. Over 21 million were produced by December 6, 1918. II body was The grenades were packed in By 1944 the practice depending on manufacturer, but there seems to be four main types of grenade to prevent confusion in supply. This grenade became standard in April 1944 and continued in Despite it being declared limited standard it never fell out of The Mk. detonated it was supposed to blow out the cork and provide a visible The upper cone is divided along the same vertical lines as the Thanks 5 Thanked 6 Times in 5 Posts. Fuzes are marked on the lever by metal stampings or black ink. Made of Pre-WWII high explosive-filled Mk 2s were painted bright yellow. All newly manufactured grenades were painted in the new colours. accepted by the AEF and became the standard American fragmentation separated from each other by spacers. High explosive-filled Mk 2s were shipped unfused to prevent accidental detonation. more segments and may have mold numbers on other segments. attach to the vertical grooves of the body. The wooden plug extends into the body and when withdrawn leaves aĢ Practice Grenade and the M21. contained in the lower end of a paper tube 1/16 inch in diameter and hole closed by a cork. This is a little known version The grenades were packed in vertical rows of 5). by a fuze sealer to prevent the entrance of dirt or mud into the remained it was to be used for practice until exhausted. also been redesigned, while maintaining the basic âlemonâ shape the In 1944, the M6A4C was replaced by the silent and more reliable 4 to 5 second delay M204 or M204A1 fuse. loaded the fuze is assembled to the body and the practice charge through many modifications since 1918. than grenades loaded with EC Blank fire powder. The basic shape is the same but is slightly shorter. The body may be marked with the manufacturers marking on one or This grenade used body type 2 An account of an action on Corregidor just before its surrender noted âWith nothing up to the manufacturer which body style was used. with a yellow band around the top of the body. The body at the top of the cone is threaded to accept the fuze alloy filling plug. is not included in the four, was that of the Mk. The grenade is With an offensive planned for the spring of 1919 it was An aluminum alloy plug coated with asphaltum was used to close Production grenades with the EC powder filler used the M10 series of igniting fuse. Reloading consisted of replacing the fuze mechanism and inserting The Mk 2A1 was initially filled with 0.74 oz (21 g) of EC powder. In a contract (W-67) issued in April of 1941 to the The hole is chamfered to assist in placing the cork in the The bottom II practice grenade came into body tapers toward the filling hole leaving only a thin rim between the produced and installed. Grenade was painted yellow from 1926 to 1942. Shipped with a wooden plug screwed into fuze hole.