“This piece of gear is much more useful when you’re only a few miles from the enemy,” he told The Telegraph.
“Bringing Grads, Himars or other larger rocket launchers is dangerous as you can be spotted quite quickly.
“With these trucks you get in and out quickly without having to lose the big launchers, because even before you’ve fired the enemy has often spotted you with binoculars and can eliminate you.”
Able to shoot at a distance of 6.2 miles, Pawel explains the the most experienced gunners can strike within a radius of 16 feet to 33 feet from their target.
Each firing team consists of a pilot, who also loads the rocket, a surveillance drone operator and a targeter to position the launchers.
Pawel, a driver, said his team once slipped 2 km from enemy troops before trigger an artillery barrage.
It is not only these highly mobile weapons that are converted at the plant, which is funded by the government of Kryvyi Rih.
In an adjacent workshop is a completed, much larger four-tube Grad system mounted on the rear bed of a Mercedes Unimog ready to be sent to the front line.
It was sent back to the team for tweaks after initially rolling out in the summer, but now engineers believe the massive transport truck will be deadlier than ever.
The factory also produces truck mounts for the MG42 type machine guns made in Yugoslavia and still in use by the Ukrainian army today.
At the start of the war, Russia had a huge firepower advantage over Ukraine, with Moscow’s artillery outnumbering Kyiv’s forces by 10 to one.
But in recent months, the tide has turned.