Tokyo Marui Px4: specs, joules & FPS
Complete specs Tokyo Marui GBB (gas blowback)
Tokyo Marui Px4, GBB: 0.54 J, 240 FPS, 833 g, 25 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.
The main source does not give the velocity: FPS taken from the page of the same model on www.redwolfairsoft.com.
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 | Tokyo Marui |
|---|---|
| Model | Px4 |
| Category | Pistols |
| Power source | GBB (gas blowback) |
| Platform | Px4 |
| Weight | 833 g |
| Length | 192 mm |
| Inner barrel | 91 mm |
| Magazine | 25 rounds |
| Hop-up | Adjustable |
Weighs 833 g: heavier than 54% of GBB replicas in the same category in the database (466 with weight).
At 0.54 J it is more powerful than 4% of GBB replicas in the same category that stay within 1 J (351).
Similar alternatives
Same type and category, with similar power and weight.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| Tokyo Marui Night Warrior | 0.54 J | 240 | 836 g |
| Tokyo Marui MEU Pistol | 0.54 J | 240 | 843 g |
| Tokyo Marui Desert Warrior 4.3 | 0.54 J | 240 | 820 g |
| Tokyo Marui Foliage Warrior | 0.54 J | 240 | 820 g |
| Tokyo Marui Strike Warrior | 0.54 J | 240 | 816 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 | 240 | 73 |
| 0.25 g | 215 | 65 |
| 0.28 g | 203 | 62 |
| 0.30 g | 196 | 60 |
| 0.32 g | 190 | 58 |
| 0.36 g | 179 | 55 |
| 0.40 g | 170 | 52 |
Theoretical calculation at constant energy (0.54 J). Real-world values can differ slightly with hop-up and replica.
Data source
Every value on this page comes from the manufacturer's official product page, checked on 2026-11-07.
Official Tokyo Marui product page ↗ tokyo-marui.co.jp
Spotted a wrong or missing value? Let us know.