Troy Industries is best known for the rifle that replaced what model in the US Army by 1961?
Troy Industries Troy Industries, Inc. is an American manufacturer of firearms and firearm parts based in West Springfield, Massachusetts. It is the manufacturer of parts on the Smith & Wesson M&P15 and is a United States government contractor. Troy is best known for its M14 rifle parts and its M7A1 carbine, which was reviewed by the United States armed forces when drafting requirements for a replacement of the M4 carbine.
M29 mortar The M29 is an American-produced 81 millimeter mortar. It began replacing the M1 mortar in U.S. service in 1952 being lighter and with greater range. It was subsequently replaced by the M252 mortar in 1987. Variants included the M29E1 and M29A1, adopted in 1964. These were produced with a hard chrome-plated bore to prolong barrel life and ease cleaning.