SSR4 Mk2 – Automatic Electric Gun (AEG)
€329
Also The SSR4 Mk2 is the result of years of development experience. It combines a unique exterior that no other M4 has with improved internals and features new to the airsoft industry. This future-proof rifle sets a new standard for what an Airsoft AEG M4 should be.
SSR4 Mk2 Features:
- 25-year spare part warranty (terms and conditions).
- Novritsch reinforced gearbox shell.
- Modular trigger with adjustable pre-travel & resistance.
- Rotary TDC Hop-Up chamber with optional BB retention.
- Solid full metal construction.
- ∼25 rounds per second with an 11.1V battery.
- Programmable Electronic Trigger Unit. Click for Guide
- Updated quick spring exchange system.
- Ambidextrous magazine release.
- Adjustable bolt plate and magnetic dust cover for easy hop-up adjustment.
- Pre-upgraded internal components.
- T-plug battery connectors.
- Extensive video library with courses and guides.
- In-depth Start Airsoft Course.
- Designed by passionate Airsofters in Vienna, Austria.
- Vienna-based Tech support team.
- All spare parts readily available.
Specs
Capacity: 225 BBs
Fire Rate: ~25 RPS with 11.1V battery
Length: 73cm (Retracted) 81,5cm (Extended)
Weight: 2.38 kg
Inner Barrel Length: 310mm
Inner Barrel Diameter: 6.03mm
What's in the box?
- SSR4 Mk2
- M4 Mid-cap Magazine
- Manual
- 2x BB retention Oring
- Buffer tube tool for quick spring change
- Trigger adjuster tool
- Additional trigger adjuster tool
- Cleaning rod
BB Weight Recommendation
Check out: BB weight recommendations
Additional Info & Warnings
The battery & charger are not included. We recommend using the V1 LiPo battery V1 – 11.1V.
Do not store with pre-cocking engaged. Pre-cocking is disabled on full auto – just shoot on auto at the end of the game to release the spring.
Country Specific Guide
We are shipping products from Vienna within Europe easily. For specific shipping information about your country, click here.
Check out bundles to save more:
📦 We expect to restock the following variations:
• <0.5 Joules in 14 weeks / July 10th, 2026
Please note, there might be unforeseen delays.Frequently used with:
LiPo Battery Charger
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SSR4 Mk2 Anodized CNC Trigger
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Description
Package Deals
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Pre-built bundle
SSR4 Mk2 Bundle
From: Original price was: €520.€487.53Current price is: €487.53.Build your setup!
Tomorrow is here
The next step in airsoft. The SSR4 MK2 combines every latest innovation to be the one replica that does it all: Accuracy, RPS, customisability and comfort. This is the last replica you will ever need.
TRUE TO THE CORE
The SSR4 Mk2 is the core structure for you to work from. This is why we offer all the essential accessories for this platform to transform it into the tool you need it to be.
2-way ADJUSTABLE TRIGGER
The trigger pre-travel and tension can be adjusted in an instant without disassembly, simply with the turn of the included Allen key to ensure you have the perfect trigger pull every time. You can also exchange the trigger with our CNC anodised triggers without the need for disassembly.
THE SSR4 Mk2 on the field
Chris takes control of the field using the SSR4 MK2 showcasing the potential of this rifle!
All you need to know
For those who prefer to sit back and relax rather than reading, here we present every feature of the platform and the work that went into this replica.
THE SSR4 MK2 on the field
All you need to know
2-Position bolt plate
The magnetic dust cover and rear-placed bolt plate make on-the-go hop-up adjustments easy without having to hold the charging handle. Or, set the bolt plate fully forward—it’s your choice.
25 rps
We achieved 5 more RPS compared to the SSR4 MK1. Is it necessary to win engagements? No, but it sure helps!
Adjustable Hop-Up
Fine-tune your shots with the numbered rotary dial and TDC trolley for unmatched precision and consistency. The optional BB retention o-ring adds extra control to keep every shot on point.
Quick Spring Exchange
Thanks to the new centering buffer tube screw there is no hassle in inserting your allen key and changing the spring, the entire process can be done in under one minute!
PROGRAMMABLE ETU
The SSR4 Mk2 features our signature ETU with 5 levels of pre-cocking, binary, burst, and full-auto. Configure it to your playstyle simply by pressing the trigger and following our chart.
Tech Breakdown
Inner Barrel
A 6.03mm diameter and 310mm length for enhanced accuracy and performance.
Hop-Up Chamber
Rotary design with a numbered dial, TDC, and optional BB retention for precision control.
Compression Parts
CNC aluminum piston head, cylinder head, nozzle, and a stainless steel cylinder for reliable performance.
Piston
Reinforced polymer body with a full steel rack for strength and durability.
Gears
Durable CNC machined 16:1 steel gears for optimal performance and reliability.
Spring Guide
Laser-engraved locking position for precise and secure installation.
BB Retention
Tired of your BBs falling out when reloading? You now have the option to add an O-ring to prevent it.
Gearbox Shell
Novritsch reinforced gearbox shell with solid construction, better design, and improved radiusing. Check out the difference in thickness and see how it’s built to last.
ETU
Fully programmable ETU with pre-cocking, burst, binary mode, battery protection, and a T-plug connector.
Trigger
Fully adjustable modular design with customizable pre-travel and resistance for precision control.
Motor
30K RPM neodimium motor.
Tech Breakdown
Inner Barrel
A 6.03mm diameter and 310mm length for enhanced accuracy and performance.
Hop-Up Chamber
Rotary design with a numbered dial, TDC, and optional BB retention for precision control.
Compression Parts
CNC aluminum piston head, cylinder head, nozzle, and a stainless steel cylinder for reliable performance.
Piston
Reinforced polymer body with a full steel rack for strength and durability.
Gears
Durable CNC machined 16:1 steel gears for optimal performance and reliability.
BB Retention
Tired of your BBs falling out when reloading? You now have the option to add an O-ring to prevent it.
Gearbox Shell
Novritsch reinforced gearbox shell with solid construction, improved design, and enhanced radiusing.
ETU
Fully programmable ETU with pre-cocking, burst, binary mode, battery protection, and a T-plug connector.
Trigger
Fully adjustable modular design with customizable pre-travel and resistance for precision control.
Motor
30K RPM neodimium motor.
A word from the DEV
"When working on the SSR4 Mk2, we saw it the same way you would: We need gear you can count on 100%. We took the strong foundation of the airsoft AR platform and made it sturdier and smoother to handle. We got rid of the annoying wobbles, completely reworked the trigger (arguably the most important part of any gun), and refined the hop-up. Long story short, we gave it the attention it needed to shine, while still keeping it reasonably priced. And we weren’t afraid to throw out the “real-steel” rulebook, going for designs that simply make sense in airsoft. Plenty of people on our team, with years of experience, had hands on the Mk2 project. It’s a rifle we are proud of, in the end. I’ve personally been at this for nearly two decades, and it simply makes me happy to bring some of my experience to your hands. I hope it’s everything you need it to be, and more."
- Alex (Product Development)
What's in the box
- The SSR4 Mk2
THE SSR4 mk2 in its natural habitat
Overview & More Gameplay
Full Support
To make it as easy as possible for you, we created an extensive video academy to know everything about airsoft and your own replica.
We also offer all the spare parts you would ever require on this website. The last thing you want is to be out of service because a tiny part gave out on you.
And if you’re in trouble, our Vienna-based tech support is on standby to help you figure out your needs!
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