Description
Futuristic Compact Firepower: EMG Strike Industries SI-90 AEG Compact – Black
Bring futuristic P90 performance to your airsoft loadout with the EMG Strike Industries SI-90 AEG Compact. Based on the real-steel Strike Industries Modular Chassis for the FN PS90, this officially licensed airsoft replica takes the classic P90 bullpup platform and gives it a seriously modern makeover. With its compact configuration, aggressive Strike Industries styling and practical ergonomic upgrades, the SI-90 is built for players who want a distinctive AEG that performs as well as it looks.
At the heart of the SI-90 is a pre-upgraded Version 6 gearbox paired with the EShooter Kestrel V6 Basic ETU. This electronic trigger unit removes the traditional P90 trigger linkage, giving the rifle a noticeably more responsive trigger feel while adding programmable functions such as 3-round burst, binary trigger and five levels of pre-cocking. Add 18:1 CNC steel gears, a high-torque neodymium motor, quick-change spring system and a 6.05mm tightbore inner barrel, and the compact SI-90 offers a seriously capable package straight out of the box.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer / OEM | EMG / King Arms |
| Platform | P90 |
| Platform Type | Bullpup Submachine Gun / AEG |
| Power Source | Electric |
| Gearbox | Version 6 |
| ETU | EShooter Kestrel V6 Basic |
| Fire Modes | Safe / Semi / Full Auto / Programmable |
| HOP-Up | Rotary Adjustable |
| Inner Barrel | 6.05mm Tightbore |
| Inner Barrel Length | 247mm |
| Magazine Capacity | Approx. 100 Rounds |
| Magazine Type | AEG Mid-Cap |
| Magazine Compatibility | P90 AEG Magazines; King Arms recommended |
| Motor | High-Torque Neodymium |
| Gear Ratio | 18:1 CNC Steel Gears |
| Spring System | Quick-Change Spring |
| Battery | 7.4V LiPo Recommended |
| Battery Connector | Deans |
| Wiring | Rear Wired |
| Outer Barrel | 10.4″ |
| Thread | 14mm CCW Male |
| Rail System | 20mm Picatinny / M-LOK |
| Construction | Aluminium / High-Density Polymer |
| Weight | Approx. 2.2kg |
| Length | Approx. 58cm |
| Colour | Black |
Key Features & Performance
- Officially Licensed Strike Industries Design: Authentic Strike Industries styling and trademarks applied to the PS90-inspired chassis.
- Compact Configuration: Shorter 58cm overall length makes the SI-90 particularly easy to manoeuvre in confined environments.
- EShooter Kestrel V6 Basic ETU: Replaces the traditional P90 trigger linkage for a more responsive electronic trigger system.
- Programmable Fire Modes: Includes programmable functions such as 3-round burst, binary trigger and five levels of pre-cocking.
- Pre-Upgraded V6 Gearbox: Features 18:1 CNC steel gears, 9mm bushings, steel-tooth rack piston, quick-change spring system and high-torque neodymium motor.
- 6.05mm Tightbore Inner Barrel: Provides enhanced accuracy potential when paired with quality BBs and a correctly adjusted HOP-up.
- Strike Industries Oppressor: The compact version features a licensed replica of the Strike Industries Oppressor linear compensator for an aggressive, modern muzzle profile.
- M-LOK & Picatinny Mounting: Hybrid handguard and receiver rails provide plenty of options for lights, grips, lasers, optics and other accessories.
- Ambidextrous Controls: Fire controls and charging handles are designed with left- and right-handed users in mind.
The “Pro” Take
The EMG Strike Industries SI-90 Compact is a brilliant option for players who want the compact practicality of a P90 without settling for a traditional-looking build. The Strike Industries chassis completely changes the character of the platform, adding an AR-15-style grip angle, adjustable cheek riser, QD sling sockets, rubber butt plate and modern accessory mounting options.
The compact configuration really comes into its own in CQB and tight woodland environments. At approximately 58cm long, the SI-90 remains extremely manageable without feeling like you’ve sacrificed the familiar P90 handling characteristics. The removable handguard can also be taken off to expose a 20mm Picatinny rail, giving you the option of an even more minimalist setup.
Then there’s the Kestrel V6 Basic ETU. By eliminating the conventional P90 trigger bar linkage, the electronic trigger system gives the SI-90 a much sharper trigger response. With adjustable pre-cocking and programmable options such as 3-round burst and binary trigger, there’s plenty here for players who enjoy fine-tuning their AEG’s controls.
UK Spec & Site Performance
The SI-90 Compact is a rear-wired AEG using a Deans connector, with Patrol Base recommending a 7.4V 1450mAh LiPo battery. The battery is housed inside the rear of the chassis, while a QR code inside the battery compartment provides access to the Kestrel ETU programming instructions. The rifle is supplied with a 100-round mid-cap magazine and accepts P90 AEG magazines, with King Arms-branded magazines recommended.
The compact 58cm format, bullpup layout and adjustable rotary HOP-up make the SI-90 a particularly interesting choice for CQB and woodland players alike. The 247mm 6.05mm inner barrel provides a solid platform for consistent performance, while the quick-change spring system gives you useful flexibility when setting the rifle up for your preferred site limits. Always chrono your rifle and check your individual site’s FPS and Joule requirements before playing.
Friendly FAQ
What is the EMG Strike Industries SI-90 Compact?
The SI-90 Compact is a P90-style AEG based on the Strike Industries Modular Chassis for the FN PS90. It combines the compact bullpup format of the P90 with modern Strike Industries ergonomics and an EShooter Kestrel electronic trigger system.
What is the difference between the Compact and Extended SI-90?
The Compact version uses a shorter 10.4-inch outer barrel and compact handguard configuration, measuring approximately 58cm overall. The Extended version uses a longer PS90-style barrel extension and larger handguard configuration.
What gearbox does the SI-90 Compact use?
It uses a Version 6 gearbox with TM-compatible internals, 18:1 CNC steel gears, 9mm bushings, a polymer piston with full steel tooth rack, quick-change spring system and high-torque neodymium motor.
What does the Kestrel V6 Basic ETU do?
The EShooter Kestrel ETU replaces the traditional P90 trigger linkage, improving trigger response and feel. It also provides programmable functions including 3-round burst, binary trigger and five levels of pre-cocking.
What magazine does the SI-90 use?
The SI-90 uses P90 AEG magazines and comes supplied with a 100-round mid-cap magazine. King Arms-branded P90 magazines are recommended.
Can I fit a tracer unit or suppressor?
Yes. The compact SI-90 has a 14mm CCW male-threaded outer barrel, allowing compatible airsoft tracer units and suppressors to be fitted. The supplied Strike Industries Oppressor can also be changed when configuring the muzzle setup.
What battery does the SI-90 Compact use?
The rifle uses a rear-wired Deans connection, with a 7.4V 1450mAh LiPo in stick configuration recommended by Patrol Base. The battery and charger are not included.












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