VFC HK53 GBB: specs, joules & FPS
Complete specs VFC GBB (gas blowback)
VFC HK53 GBB: 1 J, 328 FPS, 3,200 g, 30 rounds. Full specs from the official source, with FPS for every BB weight.
Power
Exactly at 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.
Velocity declared in m/s by the source and converted to 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 | VFC |
|---|---|
| Model | HK53 GBB |
| Manufacturer code | VF2-LHK53-BK01 |
| Category | Assault rifles & carbines |
| Power source | GBB (gas blowback) |
| Platform | HK53 |
| Weight | 3,200 g |
| Length (collapsed / extended) | 550 / 750 mm |
| Inner barrel | 208 mm |
| Magazine | 30 rounds |
licenza Umarex
Weighs 3,200 g: heavier than 75% of GBB replicas in the same category in the database (314 with weight).
At 1 J it is more powerful than 93% of GBB replicas in the same category that stay within 1 J (28).
Similar alternatives
Same type and category, with similar power and weight.
| Replica | Energy | FPS | Weight |
|---|---|---|---|
| APFG MCX SPEAR XM7 GBB | 1.01 J | 330 | 3,230 g |
| Umarex Lightning Series HK416C GBB - Black (by CGS) | 1.01 J | 330 | 3,130 g |
| Umarex Lightning Series HK416D GBB - Black (by CGS) | 1.01 J | 330 | 3,110 g |
| Umarex Lightning Series HK416A5 GBB - Black (by CGS) | 1.01 J | 330 | 3,080 g |
| KSC AKS74U GBBR (System 7 Two) | 1.01 J | 330 | 3,330 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 | 328 | 100 |
| 0.25 g | 293 | 89 |
| 0.28 g | 277 | 84 |
| 0.30 g | 268 | 82 |
| 0.32 g | 259 | 79 |
| 0.36 g | 244 | 75 |
| 0.40 g | 232 | 71 |
Theoretical calculation at constant energy (1 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 VFC product page ↗ vegaforce.com
Spotted a wrong or missing value? Let us know.