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SRS 22" FDE Full Upgraded by Skirmshop (2.8 Joules)
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Pickup available at Skirmshop Spain
Usually ready in 24 hoursThe Upgrade kit turns your SRS into a sniper beast. This UPGRADE makes your SRS precise, consistent, and silent! Load your magazines and shake up the field like never before.
The package includes the Silverback SRS A2/M2 22" (FDE), and the following Stalker Upgrades
- Kraken SRS Ultimate Edition
- Scorpion Piston - SRS + Spring Guide
- "Morpheus" Dual Bore Hybrid Barrel (510 mm)
- Kraken SRS Concave Bucking 70° (Gen 2)
- Fluted Teflon Silent Cylinder SRS A1/A2
- STALKER Official Logo Patch
- Carbon Mock Suppressor, Medium (Size M), 24mm CW
- Airsoft replica assembly, function test, and chrono.
We firmly believe that Rapax Springs are the best springs on the market. The results with these Spring and Stalker upgrades are perfect.
- Rapax 2.8 J Spring - made for SRS/TAC41/SSG/VSR (Spacers included if necessary)
*Note: this upgrade discount is only available when all products are in stock. Click on 'add to cart'; if all products are visible, you can purchase this kit with the mentioned discount. If the products are not in your shopping cart, you will see a blank page, which means one of these products is not available.
Product Descriptions:
Kraken Hop-Up Chamber
- Easy setup for both professional and new players (Bucking change in ~2 minutes)
- 100% self-alignment system for a perfectly aligned setup every time
- 100% aligned and sealed with Kraken Hop-Up buckings
- Toothed adjustment wheel for easy tuning
- O-ring guided adjustment wheel
- Custom-made steel cam screw
- White laser-engraved letters and text
- Front O-ring to prevent BBs from dropping
- Modular chamber design to fit most VSR-cut buckings, bridged and unbridged inner barrels, and nubs
- Modular cam section to swap and use S1, S2, and S3 cams
- V-slot for the SRS A1 outer barrel upper screw
- V-slot for the SRS A2 outer barrel lower screw
- Side cutouts in the body for future STALKER products
- Quick configuration to easily swap inner barrels, Hop-Up buckings, or clean inner barrels
Scorpion Piston SRS
The Stalker Scorpion piston features an extremely modular design that was created from scratch on my drawing table a long time ago. It includes every option players could want for their SRS piston. It is a unique concept in which 6 weights form the actual body, and since the piston itself is made up of these weights, it is also possible to extend the piston with additional weights (short stroke), which in turn reduces your cylinder volume and joules.
Morpheus 510MM Inner Barrel
The Morpheus Hybrid barrel is made from highly durable SUS304 stainless steel and features a conical crown (Dualbore) to improve range and accuracy.
We use the most durable and resistant seamless SUS304 steel because we wanted to raise the bar slightly. Most brands use SUS303 stainless steel because it is easier to machine. The corrosion resistance of SUS303 stainless steel is reduced due to its composition, as it is specialized for machining. The SUS304 steel we use is more difficult to machine but more durable and offers excellent corrosion resistance.
Teflon Cylinder
This cylinder is a Teflon-coated version of a standard cylinder. The internal coating treatment is a cold process, so the cylinder retains its straight shape, which is often not the case with heat-treated cylinders. The cylinder also features a special internal coating that provides better energy transfer with pistons, which may also increase your joules if your piston has a properly sized cup.
This cylinder is fully compatible with Silverback SRS A1 and A2 receivers.
This cylinder thread works with A1 and A2 bolt handles.
This cylinder works with various aftermarket pistons.
Rapax 2.8J Spring
Galvanized to prevent oxidation, reduce friction, and provide a longer service life compared to other springs.
*The box is for promotional purposes only and is not included*
You can follow us on Instagram, Facebook, or email us at:
Facebook: https://www.facebook.com/StalkerAirsoftDesigns/
Instagram: https://www.instagram.com/stalkerairsoftdesigns/
Youtube: https://www.youtube.com/channel/UCWsBiSHlu-lbcnGQWAkeJWQ
Email: info@skirmshop.es
For more information about Stalker products and crafting guides, please visit: www.stalkerairsoft.com
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In stock! Ships within 1-2 business days.
Complimentary shipping & returns

SRS 22" FDE Full Upgraded by Skirmshop (2.8 Joules)
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
Do I need an account to order?
No, but an account lets you save addresses, review orders, download invoices and manage wish‑lists.
When will my order ship?
Orders placed before 15:00 CET on business days ship the same day if the
items are in stock. A tracking e-mail follows automatically.
Can I change or cancel my order?
Yes, e-mail orders@skirmshop.nl or use the contact form before 15:00 CET on the shipping day
with your order number. After dispatch, changes aren’t possible.
Do you ship outside the EU?
Yes, the shipping rates and import taxes will be calculated at checkout.
What is the minimum age to buy an airsoft replica?
Please check your own governments regulations for the minimum required age.
Don't forget to send your ID.