Cybergun Thompson M1A1 GBBR (by WE): specs, joules & FPS
Complete specs Cybergun GBB (gas blowback)
Cybergun Thompson M1A1 GBBR (by WE): 0.98 J, 325 FPS, 2,690 g, 50 rounds. Full specs from the official source, with FPS for every BB weight.
Power
Within Italy's 1 J limit
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 | Cybergun |
|---|---|
| Model | Thompson M1A1 GBBR (by WE) |
| Category | Assault rifles & carbines |
| Power source | GBB (gas blowback) |
| Platform | M1A1 |
| Weight | 2,690 g |
| Length | 810 mm |
| Magazine | 50 rounds |
| Hop-up | Adjustable |
Weighs 2,690 g: lighter than 68% of GBB replicas in the same category in the database (314 with weight).
At 0.98 J it is more powerful than 89% of GBB replicas in the same category that stay within 1 J (28).
Similar alternatives
Same type and category, with similar power and weight.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| VFC Colt M723 GBB | 1.01 J | 330 | 2,690 g |
| Umarex HK416C GBB GBBR (by VFC) | 1.01 J | 330 | 2,680 g |
| EMG Noveske N4 M4 GBB (MWS System) by Double Eagle - DE (Gen2) | 0.95 J | 320 | 2,750 g |
| King Arms TWS 9mm SBR M4 GBB | 1.01 J | 330 | 2,590 g |
| ARCHWICK Colt Canada L119A2 British Special Forces Rifle AWS GBB (Ultimate Edition) | 0.95 J | 320 | 2,810 g |
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 | 325 | 99 |
| 0.25 g | 291 | 89 |
| 0.28 g | 275 | 84 |
| 0.30 g | 265 | 81 |
| 0.32 g | 257 | 78 |
| 0.36 g | 242 | 74 |
| 0.40 g | 230 | 70 |
Theoretical calculation at constant energy (0.98 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.