Systema PTW Challenge Kit M4-A1 CQBR Evolution (M90 Cylinder): specs, joules & FPS
Partial data Systema AEG (electric)
Systema PTW Challenge Kit M4-A1 CQBR Evolution (M90 Cylinder), AEG: 0.95 J, 320 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 CQBR 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 0.95 J it is more powerful than 70% 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 |
|---|---|---|---|
| Novritsch SSR77 A2 AEG | 1 J | 328 | 3,400 g |
| Novritsch SSR74 AEG (Long) | 1 J | 328 | 3,360 g |
| G&P M4 CQBR | 1.01 J | 330 | 3,440 g |
| Novritsch SSR77 A1 AEG | 1 J | 328 | 3,500 g |
| KWA Full Metal KM4 KR5 AEG w/ 5 inch Keymod Handguard | 0.95 J | 320 | 3,040 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 | 320 | 98 |
| 0.25 g | 286 | 87 |
| 0.28 g | 270 | 82 |
| 0.30 g | 261 | 80 |
| 0.32 g | 253 | 77 |
| 0.36 g | 239 | 73 |
| 0.40 g | 226 | 69 |
Theoretical calculation at constant energy (0.95 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.