ARES M40-A6: specs, joules & FPS
Complete specs ARES Spring
ARES M40-A6, spring: 1.49 J, 400 FPS, 3,450 g, 45 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.
The main source does not give the velocity: FPS taken from the page of the same model on www.redwolfairsoft.com.
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 | ARES |
|---|---|
| Model | M40-A6 |
| Manufacturer code | MSR-025 |
| Category | Assault rifles & carbines |
| Power source | Spring |
| Platform | M40 |
| Weight | 3,450 g |
| Length (collapsed / extended) | 810 / 1,060 mm |
| Magazine | 45 rounds |
| Hop-up | Adjustable |
fucile a otturatore; codice MSR-026 per la versione Dark Earth; velocità non indicata (secondo la normativa locale)
Weighs 3,450 g: heavier than 69% of spring replicas in the same category in the database (54 with weight).
Similar alternatives
Replicas of the same type and category that stay within the Italian 1 J limit.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| Tokyo Marui M40A5 | 0.84 J | 300 | 3,400 g |
| KTW Lee Enfield No.4 Sniper Classic Rifle (Spring Power) | 0.84 J | 300 | 3,360 g |
| Tokyo Marui VSR-ONE | 0.84 J | 300 | 2,100 g |
| Tokyo Marui VSR-ONE Gold Edition | 0.84 J | 300 | 2,100 g |
| KTW Winchester M1873 Carbine Custom Rifle | 0.75 J | 285 | 2,270 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 | 400 | 122 |
| 0.25 g | 358 | 109 |
| 0.28 g | 338 | 103 |
| 0.30 g | 327 | 100 |
| 0.32 g | 316 | 96 |
| 0.36 g | 298 | 91 |
| 0.40 g | 283 | 86 |
Theoretical calculation at constant energy (1.49 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 ARES product page ↗ aresairsoft.com
Spotted a wrong or missing value? Let us know.