pernach

There Pernach also features a loaded chamber indicator.

The pernach was a type flanged mace developed since the 12th century in the region of Kievan Rus' and later widely used throughout Europe.

The most popular variety of pernach had six flanges and was called shestopyor (from Russian shest' and pero, that is six-feathered).

A contemporary derivative of the Stechkin, the OTS-33 Pernach, is also chambered for the 9x18mm Makarov cartridge.

Among a variety of similar weapons developed in 12th-century Persian- and Turkic-dominated areas, the pernach became pre-eminent, being capable of penetrating plate armour and plate mail.

A pernach or shestopyor ("six-feathered") was often carried as a ceremonial mace of rank by certain Eastern European military commanders, including Polish magnates, Ukrainian Cossack colonels and sotniks (cf. centurion).

The Pernach is an automatic pistol designed to replace the Stechkin APS in various special OMON units within the Russian police, the Russian Ministry of Internal Affairs (MVD) and other paramilitary units.