Systema PTW Challenge Kit M4-A1 Evolution (M90 Cylinder): specs, joules & FPS
Partial data Systema AEG (electric)
Systema PTW Challenge Kit M4-A1 Evolution (M90 Cylinder), AEG: 0.73 J, 280 FPS, 3,400 g, 120 rounds. Official specs.
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 | Systema |
|---|---|
| Model | PTW Challenge Kit M4-A1 Evolution (M90 Cylinder) |
| Category | Assault rifles & carbines |
| Power source | AEG (electric) |
| Platform | AR/M4 SERIES |
| Weight | 3,400 g |
| Length | n/a |
| Magazine | 120 rounds |
| Hop-up | Adjustable |
Weighs 3,400 g: heavier than 75% of AEG replicas in the same category in the database (873 with weight).
At 0.73 J it is more powerful than 9% of AEG replicas in the same category that stay within 1 J (138).
Similar alternatives
Same type and category, with similar power and weight.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| G&P M4 Enforcer | 0.73 J | 280 | 3,350 g |
| Krytac Alpha SDP AEG | 0.78 J | 290 | 3,350 g |
| Real Sword (RS) Type 56 | 0.81 J | 295 | 3,500 g |
| Tokyo Marui M4 SOCOM Next Generation (NGRS EBB) M4 AEG | 0.73 J | 280 | 3,000 g |
| Krytac War Sport LVOA-C M4 AEG (Lower Power Version) | 0.84 J | 300 | 3,290 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 | 280 | 85 |
| 0.25 g | 250 | 76 |
| 0.28 g | 237 | 72 |
| 0.30 g | 229 | 70 |
| 0.32 g | 221 | 67 |
| 0.36 g | 209 | 64 |
| 0.40 g | 198 | 60 |
Theoretical calculation at constant energy (0.73 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: Length.
Spotted a wrong or missing value? Let us know.