Umarex MP5A4 AEG (by VFC): specs, joules & FPS
Complete specs Umarex AEG (electric)
Umarex MP5A4 AEG (by VFC): 1.34 J, 380 FPS, 2,520 g, 200 rounds. Full specs from the official source, with FPS for every BB weight.
Power
Above Italy's 1 J limit
Italian shops sell versions tuned below 1 J: ask the shop which version they ship.
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 | Umarex |
|---|---|
| Model | MP5A4 AEG (by VFC) |
| Category | SMGs |
| Power source | AEG (electric) |
| Platform | MP5 MP7 MP9 |
| Weight | 2,520 g |
| Length | 685 mm |
| Magazine | 200 rounds |
| Gearbox | V2 (standard for this model) |
| Hop-up | Adjustable |
| Battery | 7,4 V LiPo · connector Tamiya mini |
Weighs 2,520 g: heavier than 51% of AEG replicas in the same category in the database (171 with weight).
Similar alternatives
Replicas of the same type and category that stay within the Italian 1 J limit.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| Novritsch SSR9 DSG AEG | 1 J | 328 | 1,900 g |
| Novritsch SSR90 Gen2 Electric SMG | 1 J | 328 | 1,900 g |
| VFC KAC PDW 10' AEG | 0.95 J | 320 | 2,360 g |
| Tokyo Marui MP5A4 Next Generation (NGRS EBB) AEG | 0.73 J | 280 | 2,790 g |
| ASG CZ Scorpion EVO 3 A1 B.E.T. Carbine AEG Italian vers. | 0.9 J | 312 | 2,675 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 | 380 | 116 |
| 0.25 g | 340 | 104 |
| 0.28 g | 321 | 98 |
| 0.30 g | 310 | 95 |
| 0.32 g | 300 | 92 |
| 0.36 g | 283 | 86 |
| 0.40 g | 269 | 82 |
Theoretical calculation at constant energy (1.34 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
Spotted a wrong or missing value? Let us know.