It was decided that the SVT-40 would be used as the Red Armies sniper rifle in April of 1940, replacing the Model 1891/30 PE Mosin Nagant and therefore the production of the bolt action Mosin was halted. All SVT-38's and SVT-40's had the optical sight mounting rails on the sides of the receiver until late 1942. Some SVT-40's have been observed without these rails most of which were Ishevsk production of 1941 dated guns as well as some Tula produced weapons in 1940-41. These non railed rifles of early production are very few in number and are a prime collectors item for the Tokarev fan. Rails ceased to be milled into the receivers of the SVT-40 in October of 1942, and the Tokarev was removed from production as a sniper rifle at this time; however, the SVT was used until the end of the war as a sniper rifle. Production of the SVT-40 snipers were approximately 7,000 in 1940, 34,710 in 1941, and 14,200 in its final year of service as the Red Army's primary sniper rifle in 1942.