Tokyo Marui Python 357 Spring Revolver (4 inch): specs, joules & FPS
Complete specs Tokyo Marui Spring
Tokyo Marui Python 357 Spring Revolver (4 inch): 0.09 J, 100 FPS, 390 g, 6 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 | Tokyo Marui |
|---|---|
| Model | Python 357 Spring Revolver (4 inch) |
| Category | Pistols |
| Power source | Spring |
| Platform | PYTHON |
| Weight | 390 g |
| Length | 240 mm |
| Magazine | 6 rounds |
| Hop-up | Fixed |
Weighs 390 g: lighter than 62% of spring replicas in the same category in the database (26 with weight).
At 0.09 J it is more powerful than 0% of spring replicas in the same category that stay within 1 J (27).
Similar alternatives
Same type and category, with similar power and weight.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| Tokyo Marui Spring Python 357 4 inch Revolver (Stainless Silver) | 0.09 J | 100 | 390 g |
| Tokyo Marui Python PPC Custom Spring Revolver 4 inch | 0.09 J | 100 | 380 g |
| Tokyo Marui Python 357 Spring Revolver (6 inch) | 0.09 J | 100 | 430 g |
| Tokyo Marui Double Eagle Spring (High Grade) | 0.24 J | 160 | 400 g |
| Tokyo Marui Python PPC Custom Spring Revolver 6 inch | 0.37 J | 200 | 450 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 | 100 | 30 |
| 0.25 g | 89 | 27 |
| 0.28 g | 85 | 26 |
| 0.30 g | 82 | 25 |
| 0.32 g | 79 | 24 |
| 0.36 g | 75 | 23 |
| 0.40 g | 71 | 22 |
Theoretical calculation at constant energy (0.09 J). Real-world values can differ slightly with hop-up and replica.
Video
Tokyo Marui Python .357 mag. 6 inch spring revolver & chrono. · Firing Marius
Video from an independent channel, matched by the replica name: check it is the same version. It loads from YouTube only when you press the button.
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.