ASG Accuracy International MK13 Compact Spring Black: specs, joules & FPS
Complete specs Spring
ASG Accuracy International MK13 Compact Spring Black: 1.8 J, 439.63 FPS, 3,800 g, 50 rounds. Official specs.
Power
Above Italy's 1 J limit
Italian shops sell versions tuned below 1 J: ask the shop which version they ship.
For information only, based on the energy the manufacturer declares for this version. Not legal advice: always check current local law and the version the shop sells.
Technical specifications
| Brand | ASG |
|---|---|
| Model | Accuracy International MK13 Compact Spring Black |
| Manufacturer code | 19626 |
| Category | Assault rifles & carbines |
| Power source | Spring |
| Platform | n/a |
| Weight | 3,800 g |
| Length | 940 mm |
| Inner barrel | 380 mm |
| Magazine | 50 rounds |
| Hop-up | Adjustable |
| EAN / UPC | 5707843085205 |
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 | 440 | 134 |
| 0.25 g | 394 | 120 |
| 0.28 g | 372 | 113 |
| 0.30 g | 359 | 110 |
| 0.32 g | 348 | 106 |
| 0.36 g | 328 | 100 |
| 0.40 g | 311 | 95 |
Theoretical calculation at constant energy (1.8 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