Ultimate SRS Upgrade Kit (510mm Barrel 3.0–3.5 Joule)
SKU: 69132408067

Ultimate SRS Upgrade Kit (510mm Barrel 3.0–3.5 Joule)

Sale price$164.22 Regular price$182.47
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Ultimate SRS Upgrade Kit (510mm Barrel 3.0–3.5 Joule)The Ultimate Stalker Upgrade Kit to make your Silverback SRS a beast of a sniper. This upgrade kit makes your SRS accurate, consistent and silent! Load up your magazines and rock the field like you never did before. The package includes the following Stalker upgrades. Stalker SRS Kraken Hopup Chamber Ultimate Edition Stalker SRS Scorpion Ultimate Edition Stalker Morpheus 510MM Inner Barrel Stalker SRS Fluted Teflon Cylinder Stalker Official Logo Patch

The Ultimate Stalker Upgrade Kit to make your Silverback SRS a beast of a sniper. This upgrade kit makes your SRS accurate, consistent and silent! Load up your magazines and rock the field like you never did before.

The package includes the following Stalker upgrades.

We strongly believe that the Rapax springs are the best springs on the market. The results with this spring and the Stalker upgrades are perfect.

*Note: This upgrade discount is only available when all products are in stock. Click 'add to cart'; if all products are visible you are able to purchase this kit with the mentioned discount. If the products are not in your shopping cart you will see a blank page, meaning one of these products is not available.

Products Description :

Kraken Hopup Chamber

  • Easy setup for pro and new players (~2 minute bucking swap)
  • 100% self-alignment system for always straight setup
  • 100% Straight / 100% Seal Patented Kraken Bucking
  • Adjustment Wheel Head Cut-Out For Easy Adjustment.
  • O-ring Guided Wheel
  • Steel Custom Made Hop Arm Screw
  • Laser Engraved White Letters And Text.
  • Front O-ring to Avoid BB’s Falling Into Receiver
  • Modular Chamber Design To Fit Most VSR Buckings, Bridged/Unbridged Barrels And Nubs.
  • Modular Arm Section to swap and use the S1, S2 and S3 arms.
  • V-Groove Island for upper outer barrel screw (SRS A1)
  • V-Groove for lower outer barrel screw (SRS A2)
  • Side Flat Body Cutouts For Future Stalker Product
  • Fast setup for easy barrel or bucking swap or cleaning barrels

SRS Scorpion Piston

The Stalker Scorpion piston has an extremely modular design which was made from scratch on my drawing table a long time ago. It has all the options people could want for their SRS piston. It is a unique concept where 6 weights form the body itself and as 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 the volume of your cylinder and joule output.

Morpheus 510MM Inner Barrel

The Morpheus Hybrid Barrel is made out of very durable SUS304 Stainless Steel and has a Dualbore tapered end-crowning to upgrade your range and accuracy.

We used the more durable and stronger SUS304 seamless steel because we wanted to step up the game a bit. Most brands use SUS303 seamed steel because it's easier to machine. SUS303 stainless steel's corrosion resistance is weakened due to its composition as it's specialized for machinability, so the SUS304 steel we use is harder to machine but more durable and has wonderful corrosion resistance.

Fluted Teflon Cylinder

This cylinder is a Teflon Fluted Version of a normal cylinder and makes your SRS A1 or A2 look super cool. The cylinder inner coating treatment is a cold treatment, so the cylinder retains its straight shape, which is often not the case with heat-treated cylinders. Your SRS not only gets a boost in looks, but the cylinder also has a special inner coating which provides better energy transfer with pistons and may also increase your joules if your piston has a correctly sized cup.

  • This Cylinder is fully compatible with both Silverback SRS A1 and A2 receivers.
  • This Cylinder thread works on both the A1 and A2 bolt handles.
  • This Cylinder works with aftermarket pistons.

Rapax 3J+ RMS Spring

The Rapax Modular Spring series is made with the same quality standards as the Light Pull series springs. With durability and quality, they are made to give you the best sniper experience. The difference from the Light Pull series is in its length (considerably shorter than the Light Pull series), slightly harder pull, but increased silent shots. Also, RMS springs are electrically coated to prevent rust, which provides smoother operation on the spring guide.

If you have any issues or questions about this or other Stalker Products, please visit our Stalker Owners Group on Facebook here: https://www.facebook.com/groups/329589544772075/

You can follow all my live feeds, photos, and information on my Instagram, Facebook or YouTube channels here:

Facebook: https://www.facebook.com/StalkerAirsoftDesigns/
Instagram: https://www.instagram.com/stalkerairsoftdesigns/
YouTube: https://www.youtube.com/channel/UCWsBiSHlu-lbcnGQWAkeJWQ

For more information about Stalker Products, Tech & Crafting Guides please visit: www.stalkerairsoft.com

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69132408067

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★★★★★ 5
Good product
Color: Black
Great space saver & looks nice
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Reviewed in the United States on May 24, 2026
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Maggie Cornelius
Lowell, US
★★★★★ 4
Spend the money for an organized life
Color: Black, Color: Black
So this thing is great - it looks great, is sturdy, is easy to clean and matches my “Studio McGee” aesthetic, stylish but functional! Pros: -self drains the water -holds all the things -keeps my sink organized Cons: -could be cheaper but you get what you pay for
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Reviewed in the United States on May 30, 2025
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Amazon Customer
Fort Morgan, US
★★★★★ 5
Great!
Color: Black
Perfect for the kitchen counter, easy to assemble and works great for soap(s), sponges, etc.
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Reviewed in the United States on May 27, 2026
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Vijayan Balasubramaniyan
Battle Creek, US
★★★★★ 5
Value for money
Color: Black
Nice and sturdy
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Reviewed in the United States on April 28, 2026
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Anna S
Louisville, US
★★★★★ 3
Looks nice, but rusted after 6 months of use
Color: Black
The caddy was aesthetically pleasing, with enough room to hold my dish soap, hand-soap and sponge as well as a brush. I really love how it looks, but only after 6 months of using this, the wires in the holder is already rusted. It looks nice but not really of good quality.
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Reviewed in the United States on February 2, 2026

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