Development
Design work on the new rifle officially began in 1984 at the government-owned Ośrodek Badawczo-Rozwojowy (OBR) in the city of Radom at the request of the Polish Ministry of Defense (the OBR institute had already been studying a possible 5.45mm weapon platform since late 1980). In 1985, the weapon’s parameters were confirmed and factory tests were conducted by the end of that year. In 1986 the first batch of prototypes was fabricated for evaluation and qualification testing.
These early prototypes, initially designated wz. 1981, were modeled on the Soviet 5.45mm AK-74 assault rifle and emphasized a high degree of parts commonality with the AKM rifle. As the weapon was intended to be able to launch rifle grenades, a newly designed, multi-functional muzzle device and a sturdier folding shoulder stock were used (the wire stock is a copy of the wire stock used on the East German MPi-KMS-72 rifle). Additionally, the wz. 81 was equipped with a mechanically-limited burst fire mode, borrowed from the AKMS wz. 1980 prototype developed in the late 1970s by OBR.
By the end of 1987 the rifle was extensively overhauled and improved (among the changes made, a series of components were introduced that were meant to be interchangeable with the AK-74, including the bolt carrier, bolt, magazines and the burst fire mode was further refined). In January 1988, these product improved prototypes were again evaluated, and in 1989 the rifle was declared to have met its requirements, followed by an order for a pre-production batch, which was manufactured that same year. In 1990 the rifles were successfully evaluated and then transferred for final operational testing. In 1991 the rifle was introduced into service with the Polish Army as the 5,45 mm karabinek wz. 1988 (kbk wz. 88).
The weapon’s design was authored by the team of engineers at OBR in Radom, under the guidance of B. Szpaderski. The rifle was produced exclusively with a folding wire stock by the Łucznik Arms Factory in Radom.
Read more about this topic: Kbk Wz. 1988 Tantal
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