The Russian military and security services field quite a variety of firearms, Western and domestic. But from all of these guns/weapons, which could be considered the best? Here is a few to consider and once again its not word about Russian-made guns, but Russian-used guns:
The AK-74M is ubiquitous in the Russian Armed Forces. In 2018, it is even replacing the shorter AKS-74U as the armament for support crew. The rifle is light, reliable, has low recoil and compact with the standard issue folding plastic buttstock.
While by some Western standards it may be considered outdated ergonomically, the AK-74M is one of the best AKs out there, with Russian special operations forces continuing to use the rifle in combat abroad and domestically.
In the Syrian Civil War, AK-74Ms are popular among all sides as a reliable and accurate weapon, with the rifle beating out the Iranian KH2002 during 2008 trials.