Lambda Defense GHM-9 GBB Machine Pistol - 2 Tones: specs, joules & FPS
Complete specs Lambda Defense GBB (gas blowback)
Lambda Defense GHM-9 GBB Machine Pistol - 2 Tones: 0.84 J, 300 FPS, 1,590 g, 31 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 | Lambda Defense |
|---|---|
| Model | GHM-9 GBB Machine Pistol - 2 Tones |
| Category | SMGs |
| Power source | GBB (gas blowback) |
| Platform | G SERIES |
| Weight | 1,590 g |
| Length | 360 mm |
| Magazine | 31 rounds |
| Hop-up | Adjustable |
Weighs 1,590 g: lighter than 85% of GBB replicas in the same category in the database (67 with weight).
At 0.84 J it is more powerful than 14% of GBB replicas in the same category that stay within 1 J (21).
Similar alternatives
Same type and category, with similar power and weight.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| Lambda Defense GHM-9 GBB Machine Pistol | 0.84 J | 300 | 1,590 g |
| KSC VZ61 Skorpion GBB (HW) | 0.84 J | 300 | 1,550 g |
| ShowGuns Mac 11 Blade GBB | 0.84 J | 300 | 1,540 g |
| Vorsk VMP-1 GBB SMG | 0.84 J | 300 | 1,830 g |
| APFG MPX Copperhead GBB | 0.84 J | 300 | 1,850 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 | 300 | 91 |
| 0.25 g | 268 | 82 |
| 0.28 g | 254 | 77 |
| 0.30 g | 245 | 75 |
| 0.32 g | 237 | 72 |
| 0.36 g | 224 | 68 |
| 0.40 g | 212 | 65 |
Theoretical calculation at constant energy (0.84 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.