. The Russian army in the future have the opportunity to abandon the small arms of caliber 5 45 mm, reported in a thematic collection of " Missile and artillery technical-technical provision of the military power of Russia - 2018 ". The reason for this step the authors of the article "the Main directions of development of rocket-artillery armament of Ground forces" referred to the lack of recoil ammunition for medium and high-range shooting. The efforts, according to experts from the 3rd research Institute of the Ministry of defence, it is better to focus on upgrading and improving the performance of bullets and weapons of caliber 7, 62 mm. currently, the system of small arms in the Russian army is based on assault rifles, sniper rifles and machine guns of both calibers - 5, 45 and 7, 62 mm. Cartridge 5. 45x39 mm was adopted in 1974, he developed the AK-74. The main advantages of the cartridge was called the higher flat trajectory, which increased the distance of direct shot, low recoil, ensuring accuracy and precision shooting, and also smaller than the caliber 7, 62 mm, weight, allowing the arrow to increase carry ammo. <span style="color:darkgray