Troy Industries is best known for the rifle that replaced what model in the US Army by 1961?
M14 rifle The M14 rifle, officially the United States Rifle, 7.62 mm, M14, is an American selective fire automatic rifle that fires 7.62×51mm NATO (.308 in) ammunition. It gradually replaced the M1 Garand rifle in U.S. Army service by 1961 and in U.S. Marine Corps service by 1965. It was the standard issue infantry rifle for U.S. military personnel in the contiguous United States, Europe, and South Korea from 1959 until the M16 rifle began replacing it in 1964. The M14 was used for U.S. Army, Navy and Marine Corps basic and advanced individual training (AIT) from the mid-1960s to the early 1970s.
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.