“Vepr-Pioneer” rifles are semi-automatic hunting rifles with a long walnut stock of “Monte-Carlo” type. The front sight bed is connected with the gas chamber. The barrel muzzle has a slot-type muzzle brake. The side surfaces of the front sight base and rear side of the receiver have the elements for attachment of the upper scope mount with Weaver rail. The trigger mechanism of hammer type is mounted on the detachable base and allows the delivery of a single shot and bringing the rifles into safety.