Remington Model 7400
The Remington Model 7400 is a series of semi-automatic rifles manufactured by Remington Arms. The Model 7400 was a replacement of the Model 740 rifle which Remington produced from 1952 to 1981. The 7400 model was ultimately replaced by the Model 750 in 2006. History. The Model 7400 was introduced in 1981 and was basically the same as the Model Four. Major differences included an checkered pistol-grip and straight comb stock. Initially only offered with a barrel, in 1988 an version was introduced.