RWA Nighthawk Custom BDS9 GBB: specs, joules & FPS
Complete specs RWA Gas NBB (non-blowback)
RWA Nighthawk Custom BDS9 GBB, NBB: 1.07 J, 340 FPS, 1,040 g, 30 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 | RWA |
|---|---|
| Model | Nighthawk Custom BDS9 GBB |
| Category | Pistols |
| Power source | Gas NBB (non-blowback) |
| Platform | HI-CAPA |
| Weight | 1,040 g |
| Length | 260 mm |
| Magazine | 30 rounds |
| Hop-up | Adjustable |
Weighs 1,040 g: heavier than 81% of NBB replicas in the same category in the database (226 with weight).
Similar alternatives
Replicas of the same type and category that stay within the Italian 1 J limit.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| SRC Night Viper Hi Capa GBB | 0.84 J | 300 | 1,060 g |
| SRC Troika MKII Hi Capa GBB | 0.84 J | 300 | 1,010 g |
| Golden Eagle 2011 TTI John Wick 4 Sand Viper Style GBB (3355) | 0.84 J | 300 | 990 g |
| Tanaka Works S&W M500 Performance Center Gas Revolver (Ver. 2, 6.5 inch) - Stainless Finish | 0.84 J | 300 | 1,150 g |
| Marushin Ruger Super Redhawk 9.5inch .454 Casull Gas Revolver - Matt Black | 0.73 J | 280 | 1,050 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 | 340 | 104 |
| 0.25 g | 304 | 93 |
| 0.28 g | 287 | 88 |
| 0.30 g | 278 | 85 |
| 0.32 g | 269 | 82 |
| 0.36 g | 253 | 77 |
| 0.40 g | 240 | 73 |
Theoretical calculation at constant energy (1.07 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.