WWII bayonets were similar to the World War I bayonets. Instead, these were rougher in appearance and also were equipped with black or reddish plastic grips rather than wooden ones. These bayonets were called Model 1942 Bayonet; however this was not the official name. This bayonet was an original WWI-era US Model 1905.
During World War II, it was upgraded. They were originally designed to fit the US Model 1903 Springfield, which were bolt-action rifles. These bayonets were well made. They were all steel, with wood grips. The original ones were in several variant forms. There was leather-covered wood, canvas-covered wood. This was wrapped in a stretch- skin for water proofing. Also there was sheet-steel throat which displayed a bomb logo on the center. Later on, they redesigned the original bayonet numerous times. The Bayonet, MI, which was in 1943 than had a shorter blade of 10” length. Also the Bayonet, M5 in 1954. It had a 7” blade.
WWII “Bayonets” July 2005.<http://www.wwiidaggers.com/IMPBAY.htm>
Johnson M1941 was a light machine gun that was used successfully in World War II. It was used by the US Marine Raiders against the Japanese and also by the American Army commando troops against the Germans. It was first used on August 7, 1942, by the American forces in the Solomon Islands. The Army bought some for issue to the 1st Special Service Force, forerunners of today's Green Berets. Photographic evidence exists of at least one Johnson Light Machine Gun in combat in the Anzio area of Italy in April 1944. Interestingly, the Netherlands Indies Army and Navy bought several thousand for use against the Japanese who were threatening to overrun Dutch colonies. In all, only about 70,000 rifles and 10,000 innovative and handy light machine guns were made. Later on, M1945 was made, and was used by the Israelians against the Arabs.
Source:Bruce, Robert. “The Johnson Light Machine Gun” December 2000.<http://www.findarticles.com/p/articles/mi_m0BQY/is_12_46/ai_66491975>