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S&T UTG9/UMP-9 G3 AEG Sub-Machine Gun (STAEG313BBK)
The S&T UTG9 G3 Electronic Trigger AEG is a compact UMP-9 style airsoft SMG featuring an advanced G3 ETU with MOSFET, quick-change spring system, rotary hop-up, ambidextrous controls, and a 14mm CCW mock suppressor included. Ideal for CQB and urban skirmishing.
The S&T UTG9 (UST9) G3 AEG is a modern airsoft submachine gun replica inspired by the iconic HK UMP-9 platform, delivering compact handling, advanced electronics, and excellent reliability for CQB and urban skirmish environments. Featuring S&T’s latest G3 Electronic Trigger System, this rifle offers enhanced trigger response, battery protection, and a 14mm CCW mock supressor included.
Built with a high-density nylon fiber polymer receiver and reinforced metal components, the UTG9 balances durability with lightweight maneuverability. Its folding stock design allows rapid transitions in tight spaces, making it ideal for close-quarters operations and fast-paced gameplay.
Advanced G3 Electronic Trigger System
At the heart of the UTG9 lies the S&T G3 ETU, incorporating a magnetic sensor and integrated MOSFET. This system improves trigger sensitivity, protects internal electronics, and ensures consistent firing performance. The built-in low-voltage cut-off automatically stops operation when battery voltage drops below 6.0V, preventing damage to Li-Po batteries.
Performance & Control
The UTG9 delivers muzzle energy between 1.15–1.20 Joules, producing approximately 300–370 FPS depending on regional limits. A rotary adjustable hop-up allows precise tuning for optimal accuracy with various BB weights. The quick-change spring system enables fast power adjustments without fully disassembling the gearbox.
Ergonomics & Tactical Features
Ambidextrous fire selector and magazine release controls ensure comfort for both left- and right-handed players. The integrated 20mm Picatinny rails support optics, lights, and accessories, while the folding stock enhances portability during transport and CQB engagements.
Key Specifications
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Model: S&T UTG9 / UST9 G3 (STAEG313BBK)
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Gearbox: Version with Quick Change Spring System
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Trigger System: S&T G3 Electronic Trigger Unit with MOSFET
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FPS: Approx. 300–370 FPS (0.20g BBs)
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Energy: 1.15 – 1.27 Joules
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Receiver: Nylon fiber polymer
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Outer Barrel & Rails: Metal
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Hop-Up: Adjustable rotary type
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Magazine: 100-round mid-cap (STMAG41M)
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Length: 450mm folded / 685–880mm extended with suppressor
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Weight: Approx. 2.63 – 2.8kg
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Controls: Ambidextrous fire selector & magazine release
| SKU | 213930 |
|---|---|
| Brand | S&T |
| Weapon Category | SMG |
| Weapon Powered By | Electric |
| FPS | 301 - 350 |
| Construction | Metal/Nylon-Fibre |
| Hop Up | Adjustable |
| Variant / Platform | UMP |
| Fire Mode | Safe/Single/Auto |
| Battery Included | No |
| Charger Included | No |
Our courier partners deliver from Monday to Friday, excluding Bank Holidays. We will attempt to dispatch all packages within 24 hours, although at peak times this may take slightly longer. Orders with products with two-tone service or Defence Check may take longer to dispatch.
Once the order is dispatched you will get an email with the tracking number and which courier partner it’s going to be delivered via. Any missing/incorrect items need to be reported with 48hrs of signed delivery.
Click Here to Download the Returns Form (PDF Format)
Faulty Product?! Unfortunately that is part of life but be rest assured we are here to help! Contact one of our friendly staff via phone or email. Stating what the problem is, if we can resolve the problem via phone or email great if not then they will advise how to send it back and what details we require.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.
