WE M4A1 PCC Version GBBR: specs, joules & FPS

Complete specs WE GBB (gas blowback)

WE M4A1 PCC Version GBBR: 1.01 J, 330 FPS, 2,740 g, 50 rounds. Full specs from the official source, with FPS for every BB weight.

Power

Energy · computed1.01 J
Velocity330 FPS101 m/s

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

BrandWE
ModelM4A1 PCC Version GBBR
CategorySMGs
Power sourceGBB (gas blowback)
PlatformAR/M4 SERIES
Weight2,740 g
Length770 mm
Magazine50 rounds
Hop-upAdjustable

Weighs 2,740 g: heavier than 66% of GBB replicas in the same category in the database (67 with weight).

Similar alternatives

Replicas of the same type and category that stay within the Italian 1 J limit.

ReplicaEnergyFPSWeight
VFC MP5 A5 V2 GBBR1 J3282,830 g
VFC MP5 K-PDW GBBR1 J3283,120 g
VFC Umarex HK MP5K1 J3282,350 g
VFC Umarex HK MP5K Early Model1 J3282,350 g
Specna Arms PPK-20 SA-J20 VAPOR0.95 J3203,045 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 g330101
0.25 g29590
0.28 g27985
0.30 g26982
0.32 g26180
0.36 g24675
0.40 g23371

Theoretical calculation at constant energy (1.01 J). Real-world values can differ slightly with hop-up and replica.

Try other values in the joule ↔ FPS converter →

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.

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