Umarex VFC PSG-1 GBBR (Umarex): specs, joules & FPS
Complete specs Umarex GBB (gas blowback)
Umarex VFC PSG-1 GBBR (Umarex): 1.49 J, 400 FPS, 3,840 g, 20 rounds. Full specs from the official source, with FPS for every BB weight.
Power
Above Italy's 1 J limit
Italian shops sell versions tuned below 1 J: ask the shop which version they ship.
Energy computed from the velocity with 0.20 g BBs, the standard weight manufacturers and shops use to measure FPS.
For information only, based on the source's data for this version. Not legal advice: always check current local law and the version the shop sells.
Technical specifications
| Brand | Umarex |
|---|---|
| Model | VFC PSG-1 GBBR (Umarex) |
| Category | DMR & sniper rifles |
| Power source | GBB (gas blowback) |
| Platform | PSG-1 |
| Weight | 3,840 g |
| Length | 1,040 mm |
| Magazine | 20 rounds |
| Hop-up | Adjustable |
Weighs 3,840 g: heavier than 64% of GBB replicas in the same category in the database (14 with weight).
Similar alternatives
Replicas of the same type and category that stay within the Italian 1 J limit.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| Marushin M1 Garand Tanker Black (6mm Version) | 0.95 J | 320 | 3,770 g |
| VFC KAC M110 K1 | 1 J | 328 | 3,090 g |
| VFC HK PSG1 GBB | 1 J | 328 | 5,200 g |
| Tanaka Works U.S.M.C.M40 with Scope 3-9 x 40 With High Mount Ring Set - Gas Version | 0.63 J | 260 | 2,890 g |
| Socom Gear Barrett M107 GBB Shell Ejecting | 0.63 J | 260 | – |
Velocity with different BB weights
At the same energy, heavier BBs leave the barrel slower. Expected velocity with the most common weights:
| BB weight | FPS | m/s |
|---|---|---|
| 0.20 g | 400 | 122 |
| 0.25 g | 358 | 109 |
| 0.28 g | 338 | 103 |
| 0.30 g | 327 | 100 |
| 0.32 g | 316 | 96 |
| 0.36 g | 298 | 91 |
| 0.40 g | 283 | 86 |
Theoretical calculation at constant energy (1.49 J). Real-world values can differ slightly with hop-up and replica.
Data source
The values on this page come from the product page of the shop redwolfairsoft.com, checked on 2026-11-07. The manufacturer does not publish full specs: values may refer to the version that shop sells.
Shop product page ↗ redwolfairsoft.com
Spotted a wrong or missing value? Let us know.