Russian culture and further tanks of T-series, including T-54/55, the most produced tank in history, first fully gas turbine tank T-80 and the most modern Russian tank T-90. The AK-47 and AK-74 by Mikhail Kalashnikov constitute the most widely used type of assault rifle throughout the world – so much so that more AK-type rifles have been produced than all other assault rifles combined. With these and other weapons Russia for a long time has been among the world's top suppliers of arms. Ethnic Russian clothes include kaftan, kosovorotka and ushanka for men, sarafan and kokoshnik for women, with lapti and valenki
AK-74 launchers. Throughout its development and evaluation stage the multiple modifications were applied to meet Russian military standards, as well as to improve upon the "range of defects" that were discovered on prototype models and to addresses concerns regarding the cost of earlier prototypes. In September 2016 the prototype models were replaced by the final production models of the AK-12 (chambered in 5.45×39mm]) and AK-15 (chambered in 7.62×39mm) assault rifles. Parallel developments are the RPK-16 light machine gun and the MA compact assault rifle (both chambered in 5.45×39mm). The AK-12, AK-15, RPK-16 and MA production models technically stronger resemble the AK-74M,