The picture is of a non firing model made by Russian design student Andrei Ovsyannikov.

Saritch is a bullpup battle rifle. Its design was inspired by foreign modular weapon design philosophy. The weapon’s internal mechanisms are encased in a polymer receiver. Many components, such as the stock, the cheek rest, the sights, and the pistol grip can be adjusted and modified to customize ergonomics. A large folding bipod is hidden in the forearm. Picatinny rails are present in many parts of the weapon to allow for attachments.

The weapon was designed as a civilian semi-automatic carbine (and the mock-up is made as one), but military versions were proposed. Several barrels of various lengths were proposed (at 722, 622 and 522 mm), able to turn the weapon into multiple roles through a modular system. 30 round magazines and automatic fire were planned for the compact military versions.

It would have able to fire short action length cartridges like the .308 Winchester. But based on the design they likely would have offered other cartridges if it got produced.