 The first design submitted was the Maxim-Kolesnikov, designed by Ivan Nikolaevich Kolesnikov at the Kovrov Arms Factory, followed soon thereafter by the Maxim–Tokarev, designed by Fedor Vasilievich Tokarev at the Tula Arsenal.During field tests conducted in early 1925, Tokarev's model proved superior, so it was adopted on May 26.Of the 2,500 Maxim–Tokarev guns were produced by Tula arms factory (TOZ) in 1926–27; 1,400 were supplied to China between 1938 and 1939 in the Sino-Soviet Aid Program.