KJ Works KP-24 1911 GBB - Grey Two Tone (Full Metal): specs, joules & FPS
Partial data KJ Works Gas NBB (non-blowback)
KJ Works KP-24 1911 GBB - Grey Two Tone (Full Metal), NBB: 1 J, 328 FPS, 930 g, 21 rounds. Full specs from the official source, with FPS for every BB weight.
Power
Exactly at Italy's 1 J limit
Estimated energy: the source does not give the BB weight, so we used 0.20 g, the standard weight manufacturers and shops use to measure velocity. With other BBs the value changes: always check with a chronograph.
For information only, based on the energy the manufacturer declares for this version. Not legal advice: always check current local law and the version the shop sells.
Technical specifications
| Brand | KJ Works |
|---|---|
| Model | KP-24 1911 GBB - Grey Two Tone (Full Metal) |
| Manufacturer code | n/a |
| Category | Pistols |
| Power source | Gas NBB (non-blowback) |
| Platform | 1911 |
| Weight | 930 g |
| Length | 255 mm |
| Inner barrel | n/a |
| Magazine | 21 rounds |
| Hop-up | Adjustable |
| EAN / UPC | n/a |
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 | 328 | 100 |
| 0.25 g | 293 | 89 |
| 0.28 g | 277 | 84 |
| 0.30 g | 268 | 82 |
| 0.32 g | 259 | 79 |
| 0.36 g | 244 | 75 |
| 0.40 g | 232 | 71 |
Theoretical calculation at constant energy (1 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
Not declared by the manufacturer: Inner barrel.