ASG CZ SP-01 Shadow Spring: specs, joules & FPS
Complete specs ASG Spring
ASG CZ SP-01 Shadow Spring: 0.4 J, 206.69 FPS, 500 g, 14 rounds. Full specs from the official source, with FPS for every BB weight.
Power
Within Italy's 1 J limit
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 | ASG |
|---|---|
| Model | CZ SP-01 Shadow Spring |
| Manufacturer code | 17655 |
| Category | Pistols |
| Power source | Spring |
| Platform | CZ Shadow |
| Weight | 500 g |
| Length | 207 mm |
| Inner barrel | 100 mm |
| Magazine | 14 rounds |
| Hop-up | Fixed |
| EAN / UPC | 5707843055567 |
Weighs 500 g: heavier than 77% of spring replicas in the same category in the database (26 with weight).
At 0.4 J it is more powerful than 44% 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 |
|---|---|---|---|
| Umarex WALTHER PPQ 'HME' Metal Slide Spring | 0.58 J | 250 | 500 g |
| ASG CZ 75 D Compact Spring | 0.4 J | 207 | 465 g |
| Tokyo Marui KP85 Ruger Spring (High Grade) | 0.41 J | 210 | 460 g |
| Tokyo Marui Python PPC Custom Spring Revolver 6 inch | 0.37 J | 200 | 450 g |
| ASG M92 FS Spring | 0.41 J | 210 | 400 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 | 207 | 63 |
| 0.25 g | 186 | 57 |
| 0.28 g | 175 | 53 |
| 0.30 g | 169 | 52 |
| 0.32 g | 164 | 50 |
| 0.36 g | 155 | 47 |
| 0.40 g | 147 | 45 |
Theoretical calculation at constant energy (0.4 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 ASG product page ↗ actionsportgames.com
Spotted a wrong or missing value? Let us know.