TOZ-55

The TOZ-55 «Zubr» (ТОЗ-55 «Зубр») is a Soviet double-barreled combination gun for big-game hunting.

History
In the early 1970s N. I. Korovyakov began work on design the new model of double-barreled combination gun based on design of his TOZ-34 shotgun. In 1975, first TOZ-55 «Zubr» shotguns were made.

In April 1987, it was announced that Tula Arms Plant would begin mass production of new TOZ-84 shotgun and this gun will replace in production TOZ-34, TOZ-55 and TOZ-57. After this, production of TOZ-55 was discontinued.

However, even in December 1988 TOZ-55 was most common hunting firearm in 9×53mmR caliber in the Soviet Union.

After the fall of the Soviet Union, some unfinished TOZ-55 shotguns and their spare parts remained in Tula Arms Plant. In 1990s it was announced that new TOZ-55-2 «Zubr» combination gun will be made. However, due to the economic crisis in Russian Federation in 1992 production of 9×53mmR ammunition was discontinued and TOZ decided not to make this model and to continue production of TOZ-34.

Design
TOZ-55 is an over and under hammerless shotgun, with one barrel above the other.

All TOZ-55s were equipped with three pairs of detachable chrome plated barrels
 * a pair of 9mm rifled barrels (600mm)
 * a pair of 12/70mm smoothbore shotgun barrels (675mm)
 * a rifled 9mm barrel over a 12 gauge smoothbore barrel

All TOZ-55s have iron sights and they were equipped with scope base for optical sight.
 * PO-4×34 (ПО-4×34), TO-6P (ТО-6П) and TO-6PM (ТО-6ПМ) scopes were standard optical sights, although custom aftermarket variants are known.

All TOZ-55 have a walnut stock and fore-end, some of them were decorated with engravings.

Variants

 * TOZ-55-2 «Zubr» (ТОЗ-55-2 «Зубр») - simplified and cheaper version of TOZ-55. It was equipped with one pair of detachable barrels (a rifled 9mm barrel with six right grooves over a 12 gauge smoothbore barrel)
 * TOZ-55-3 «Zubr» (ТОЗ-55-3 «Зубр») - simplified and cheaper version of TOZ-55. It was equipped with one pair of detachable barrels (a 12 gauge smoothbore shotgun)
 * TOZ-56 (ТОЗ-56) - test prototype, a double-barreled combination gun (with rifled 9mm barrel and smoothbore barrel)

Users

 * USSR
 * 🇱🇻 Latvia
 * Russian Federation
 * 🇺🇸 USA - the import was allowed