The modification STZA 12B LVL (Low Version Light) allows testing of cartridges within the calibre up to 375 H&H Mag. in Universal ballistic breech UZ-2002. STZA 12B LVL is light version of firing rest and allow transportation by private car.
| Height | 395 mm |
| Length | 1080 mm |
| Width | 430 mm |
| Mass | 71 kg |
| Mass of support | 65 kg |
| Elevation range | ± 5° |
| Azimuth range | ± 5° |
