"Bastion" is a name for MLRS combat complexes that consist of chassis truck KrAZ-6322 and an artillery unit - multiple launch rocket systems. They have been designed to destroy enemy personnel and combat materiel, artillery and mortar batteries, fortifications, support points and defensive posts.
There are three types of "Bastion" system and they are named respectively - "Bastion-01", "Bastion-02" and "Bastion-03." All of them are based on the chassis produced by Ukrainian company "AvtoKrAZ". "Bastion-01" uses a standard 8.5m length chassis while the second modification of MLRS is built on its extended version of 9.32m length. The main difference of Bastion-II from the other vehicle is the rapid reloading system (RRS). Besides, onboard there are 40 additional rocket missiles placed inside the special open charges. Due to the RRS usage it takes just two minutes roughly to recharge the facility, or, otherwise, it requires 7 minutes without RRS.
Bastion-I and Bastion-II are equipped with satellite navigation systems. This facility significantly increases the MLRS’s autonomy when in transportation and on firing position as well. Moreover, while modernizing the facility, the developments of Orizon-Navigation State Enterprise, which is Ukroboronprom member-enterprise, were also used.
New missiles were developed for Bastion 01 and 02 versions. The new missile extends the engagement range up to 40 km comparing to range of 20 km for the original BM-21. The projectile has a new design of the nozzle, reduced by two times due to the new material used in the engine housing as well as an improved stabilization unit with increased scale plumage, size and structure of the blade.
The “Bastion-03” vehicle is a version with MRLS “Uragan” as an artillery element. The combat complex is intended for destruction of any group targets with their weak components such as exposed and covered personnel, combat vehicles of the tank, motorized infantry, artillery divisions, air defense systems as well as parked helicopters, command and communication centers and various military and industrial facilities. System engagement range is up to 35 km. Vehicles can be successfully operated in the most hostile environmental conditions of all continents. Ukraine is the only operator of the complexes that were put into service for the Armed Forces of Ukraine in 2008. It became known in August 2014 that part of the missile troops and artillery of the armed forces of Ukraine should receive an additional amount of MLRS "Bastion".