The OTs-44 is a Russian anti-materiel rifle.
The OTs-44 is a bullpup anti-materiel rifle with an odd reloading method. Apparently, the barrel has to be offset forward for reloading. Reloading is done manually, which implies it is fed from an internal magazine. The rifle has an adjustable monopod at the rear, as well as an adjustable bipod up front. The giant silencer can be removed, as seen in some images.