Introduced in 1943, this K31 sniper variant uses a side mounted low power scope with an elevation adjustment mechanism patterned after a conventional tangent rear sight and a swiveling periscope head objective lens that can fold down partially into the stock for protection. Blade front and elevation adjustable tangent rear sights, with the "Swiss Cross in Shield" mark on the receiver ring and matching numbers on the barrel, receiver, bolt, magazine and the scope objective head. No other markings are visible on the scope. Fitted with a smooth pistol grip stock with a small "Cross in Shield" proof on the right side, a brown leather sling and a steel buttplate.

Excellent, with 98% original matte blue finish, showing light edge wear and handling marks overall. The scope elevation mechanism is obstructed, likely with dried grease, otherwise the scope is in good order with clear optics. The stock is also excellent, with a few mild dents and scuffs. Mechanically excellent.