VFC Glock G17 Gen4: specs, joules & FPS

Complete specs VFC GBB (gas blowback)

VFC Glock G17 Gen4, GBB: 0.81 J, 295 FPS, 645 g, 22 rounds. Full specs from the official source, with FPS for every BB weight.

Power

Energy · computed0.81 J
Velocity295 FPS90 m/s

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.

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

BrandVFC
ModelGlock G17 Gen4
Manufacturer codeUM3T-G17G4-BK01
CategoryPistols
Power sourceGBB (gas blowback)
PlatformGlock
Weight645 g
Length200 mm
Inner barrel97 mm
Magazine22 rounds

licenza Umarex/Glock

Weighs 645 g: lighter than 87% of GBB replicas in the same category in the database (466 with weight).

At 0.81 J it is more powerful than 41% of GBB replicas in the same category that stay within 1 J (351).

Similar alternatives

Same type and category, with similar power and weight.

ReplicaEnergyFPSWeight
VFC Glock G17 Gen30.81 J295650 g
VFC Glock G17 Gen5 France Army0.81 J295650 g
VFC Glock G17 Gen5 MOS0.81 J295650 g
VFC Glock G47 MOS0.81 J295650 g
Tokyo Marui Glock 26 Advance0.81 J295653 g

Velocity with different BB weights

At the same energy, heavier BBs leave the barrel slower. Expected velocity with the most common weights:

BB weightFPSm/s
0.20 g29590
0.25 g26480
0.28 g24976
0.30 g24173
0.32 g23371
0.36 g22067
0.40 g20964

Theoretical calculation at constant energy (0.81 J). Real-world values can differ slightly with hop-up and replica.

Try other values in the joule ↔ FPS converter →

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.

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