Photographer Konstantin Lazarev is a reliable source for photos of the latest and greatest small arms to come out of Russia. His latest batch of photos shows several different Pecheneg and PK machine guns, configured with night vision and holographic optics. Some of the photos are below:

The Pecheneg is the heavy fixed-barrel specialized dismounted variant of the PKM machine gun, and fires the same 7.62x54mmR round.

Thanks to Retiv for the tip!