








SP-xxxx
SRS 16" OD Covert Full Upgraded by Skirmshop (2.8 Joules)
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Pickup available at Skirmshop Spain
Usually ready in 24 hoursThe upgrade kit transforms your SRS into a sniper beast. This UPGRADE makes your SRS precise, consistent, and silent! Load your magazines and dominate the field like never before.
The package includes the Silverback SRS A2/M2 16" Covert (OD) and the following upgrades:
- Kraken SRS Ultimate Edition
- "Morpheus" Dual Bore Hybrid Barrel (420mm)
- SRS/TAC-41 SR-Hop Bucking (70º Orange)
- Silent Teflon Fluted Cylinder SRS A1/A2
- Scorpion Piston - SRS + Spring Guide
- STALKER official logo Patch
- Simulated Carbon Suppressor, Medium (Size M), 24mm CW
- Replica Mount, 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 are included if necessary)
*Note: This upgrade discount is only available when all products are in stock. Click '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 that one of these products is not available.
Product Descriptions:
Kraken Hop Up Chamber
- Easy setup for seasoned and new players (Hop rubber change in ~ 2 minutes)
- 100% self-aligning system for always aligned configurations
- 100% aligned and sealed with Kraken Hop Up rubbers.
- Notched adjustment wheel for easy tuning.
- Adjustment wheel guided by an o-ring.
- Custom steel lever screw
- Laser-etched white letters and text
- O-ring at the front to prevent BB drop.
- Modular chamber design to fit most VSR cut hop rubbers, internal barrels with and without bridges, and nubs.
- Modular Lever section, for swapping and using S1, S2, and S3 Levers.
- V-slot for the upper screw of the SRS A1 external barrel.
- V-slot for the lower screw of the SRS A2 external barrel.
- Side cutouts in the body for future STALKER products.
- Quick setup for easy swapping of internal barrels, hop rubbers, or internal barrel cleaning.
Scorpion Piston SRS
The Stalker Scorpion piston has an extremely modular design that was crafted from scratch a long time ago on my drawing board. It has all the options that one could desire for their SRS piston. It is a unique concept where 6 weights form the body itself and as the piston is formed by these weights, it is also possible to extend the piston with additional weights (short stroke), which in turn reduces the volume of your cylinder and the joules.
Morpheus 420MM Inner Barrel
The Morpheus hybrid barrel is made of very durable SUS304 stainless steel and has a conical crown (Dualbore) to improve its range and accuracy.
We use the most durable and stress-resistant seamless SUS304 steel because we wanted to step up the game a bit. Most brands use SUS303 welded steel because it is easier to machine. The corrosion resistance of SUS303 stainless steel weakens due to its composition, as it is specialized in machining, so the SUS304 steel we use is more difficult to machine but more durable and has wonderful corrosion resistance.
Teflon Cylinder
This cylinder is a Teflon version of a normal cylinder. The treatment of the cylinder's inner coating is a cold treatment, so the cylinder retains its straight shape, which is often not the case with thermally treated cylinders. The cylinder also has a special inner coating that provides better energy transfer with the pistons, which could also increase your joules if your piston has a suitably sized cup.
This cylinder is fully compatible with Silverback SRS A1 and A2 receivers.
This cylindrical thread works on the A1 and A2 bolt handles.
This cylinder works with various market pistons.
Rapax 2.8J
Galvanized to prevent rust, reduce friction, and provide you with an extended usage period compared to other springs.
*The box is for promotional purposes only and is not included*
You can follow us on Instagram, Facebook or write to us at our email:
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, Tech & Crafting Guides Please Visit: www.stalkerairsoft.com
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In stock! Ships within 1-2 business days.
Complimentary shipping & returns

SRS 16" OD Covert 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.