Skbk wz 89 Onyks

Skbk wz 89 Onyks is a Polish submachine gun based on the AKS74U and Kbk wz 88 Tantal submachine guns. Development of weapons by the Institute of Technology and Armaments. In 1990, an experimental batch of machine guns was released, and in 1991 military trials were completed. Serial production began in 1993.

Skbk wz 89 Onyks
Skbk wz 89 Onyks
Type of	machine
A country	Poland
Production history
Designed by	1987-1988
Manufacturer	Zaklady metalowe lucznik
Options	Skbk wz. 91 Onyks
Specifications
Weight kg	2.9
Length mm	720/519 with spread / folded butt
Barrel length mm	207
Cartridge	5.45 × 39 mm
Caliber mm	5.45
Work principles	removal of powder gases , butterfly valve
Rate of fire rounds / min	700
starting speed bullets , m / s	700
Sighting range , m	400
Type of ammunition	30 rounds magazine store
Aim	open, installation of optical sights is possible

It differs from the Tantal Onyks submachine gun in a shorter barrel with a new arrester, which retained the ability to use rifle grenades . Onyks, like its prototype, had the option of firing cut-off bursts (in addition to single shots and continuous bursts). A folding metal butt is similar to that of the Tantal.

The L-shaped flip pillar has provisions corresponding to the firing range of 100, 200 and 400 m. A device for firing in low light conditions with tritium illumination can be installed. Installation of a grenade launcher or bayonet is not possible. The machine kit includes: three spare shops, a pencil case, a shortened (relative to Tantal) ramrod, belt, bag for shops and equipment, as well as a nipple.

Variant of Skbk wz. The 91 Onyks are distinguished by the use of a 5.56 mm NATO cartridge . It was created in 1990, when Poland reoriented in its foreign policy to the North Atlantic Alliance , but was not mass-produced.