Maruyama SCW-9 GBB SMG: specs, joules & FPS

Complete specs Maruyama GBB (gas blowback)

Maruyama SCW-9 GBB SMG: 1.14 J, 350 FPS, 2,210 g, 50 rounds. Full specs from the official source, with FPS for every BB weight.

Power

Energy · computed1.14 J
Velocity350 FPS107 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

BrandMaruyama
ModelSCW-9 GBB SMG
CategorySMGs
Power sourceGBB (gas blowback)
PlatformG SERIES
Weight2,210 g
Length375 mm
Magazine50 rounds
Hop-upAdjustable

Weighs 2,210 g: lighter than 57% 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 Umarex HK MP5K1 J3282,350 g
VFC Umarex HK MP5K Early Model1 J3282,350 g
Umarex Beretta PMX SMG GBB (by KWA)0.95 J3202,400 g
Lambda Defense GHM-9 GBB Machine Pistol0.84 J3001,590 g
Lambda Defense GHM-9 GBB Machine Pistol - 2 Tones0.84 J3001,590 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 g350107
0.25 g31395
0.28 g29690
0.30 g28687
0.32 g27784
0.36 g26180
0.40 g24775

Theoretical calculation at constant energy (1.14 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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