LCT TX-S74UN AEG: specs, joules & FPS

Complete specs LCT AEG (electric)

LCT TX-S74UN AEG: 1.21 J, 361 FPS, 3,200 g, 130 rounds. Full specs from the official source, with FPS for every BB weight.

Power

Energy · computed1.21 J
Velocity361 FPS110 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.

The main source does not give the velocity: FPS taken from the page of the same model on www.airsoftzone.com.

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

BrandLCT
ModelTX-S74UN AEG
CategoryAssault rifles & carbines
Power sourceAEG (electric)
PlatformAK
Weight3,200 g
Length (collapsed / extended)500 / 730 mm
Inner barrel270 mm
Magazine130 rounds
Hop-upAdjustable rotary

calcio pieghevole; velocità non indicata (secondo la normativa locale)

Weighs 3,200 g: heavier than 66% of AEG replicas in the same category in the database (873 with weight).

Similar alternatives

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

ReplicaEnergyFPSWeight
Novritsch SSR74 AEG (Long)1 J3283,360 g
Novritsch SSR77 A2 AEG1 J3283,400 g
LCT ZKS-74UN AEG1 J3283,500 g
Novritsch SSR77 A1 AEG1 J3283,500 g
Novritsch SSR63 A1 AEG1 J3282,770 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 g361110
0.25 g32398
0.28 g30593
0.30 g29590
0.32 g28587
0.36 g26982
0.40 g25578

Theoretical calculation at constant energy (1.21 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 LCT product page ↗ lctairsoft.com

Spotted a wrong or missing value? Let us know.

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