SKU: 46652075474

Ultimate SRS Upgrade Kit (510mm Barrel 2.0-2.5 Joule)

Sale price$164.22 Regular price$182.47
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Ultimate SRS Upgrade Kit (510mm Barrel 2.0-2.5 Joule)The Ultimate Stalker Upgrade Kit to make your Silverback SRS a true sniper beast. This upgrade kit makes your SRS accurate, consistent, and silent! Load up your magazines and dominate the field like never 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 We

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

The package includes the following Stalker upgrades:

We strongly believe that Rapax springs are the best springs on the market. The results achieved with these springs and the Stalker upgrades are outstanding.

*Note: This upgrade discount is only available when all products are in stock. Click "add to cart"—if all products are visible, you will be able to purchase this kit with the stated discount. If the products do not appear in your shopping cart and you see a blank page, it means one of the products is not available.

Product Descriptions:

Kraken Hopup Chamber

  • Easy setup for both professional and new players (~2-minute bucking swap)
  • 100% self-alignment system for perfectly straight installation
  • 100% Straight / 100% Seal patented Kraken Bucking
  • Adjustment wheel head cut-out for easy tuning
  • O-ring guided adjustment wheel
  • Custom-made steel hop arm screw
  • Laser-engraved white letters and text
  • Front O-ring to prevent BBs from falling into the receiver
  • Modular chamber design compatible with most VSR buckings, bridged/unbridged barrels, and nubs
  • Modular arm section to swap and use 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 products
  • Fast setup for easy inner barrel or bucking changes and cleaning

SRS Scorpion Piston

The Stalker Scorpion piston features an extremely modular design developed from scratch. It offers all the options players could want for their SRS piston. This unique concept uses six weights that form the piston body itself. Since the piston is made up of these weights, it can also be extended with additional weights (short-stroke), reducing cylinder volume and overall joule output.

Morpheus 510MM Inner Barrel

The Morpheus Hybrid Barrel is made from highly durable SUS304 stainless steel and features a Dual Bore tapered end-crowning to improve range and accuracy.

We chose stronger and more durable SUS304 seamless steel to raise the performance standard. Most brands use SUS303 seamed steel because it is easier to machine. However, SUS303 stainless steel has reduced corrosion resistance due to its composition, as it is optimized for machinability. SUS304 steel is harder to machine but offers greater durability and excellent corrosion resistance.

Fluted Teflon Cylinder

This cylinder is a Teflon fluted version of a standard cylinder and gives your SRS A1 or A2 a premium look. The inner coating is applied using a cold treatment process, ensuring the cylinder retains its perfectly straight shape—something that is not always the case with heat-treated cylinders. In addition to improved aesthetics, the special inner coating enhances energy transfer with pistons, potentially increasing joule output if your piston uses a correctly sized cup.

  • Fully compatible with both Silverback SRS A1 and A2 receivers
  • Thread compatible with both A1 and A2 bolt handles
  • Compatible with aftermarket pistons

Rapax 2J+ RMS Spring

The Rapax Modular Spring (RMS) series is manufactured to the same high-quality standards as the Light Pull series. Designed for durability and performance, it delivers an excellent sniper experience. Compared to the Light Pull series, RMS springs are considerably shorter, have a slightly heavier pull, and provide quieter shots. They are also electrically coated to prevent rust, ensuring 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 live feeds, photos, and updates on Instagram, Facebook, or YouTube:

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: 46652075474

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THOR
Dallas, US
★★★★★ 1
Not eczema skin friendly
Size: 5.5 Ounce (Pack of 1), Size: 5.5 Ounce (Pack of 1)
Since I didn’t remember which sunblock spray I had previously purchased (that was super awesome), I got this one with a few other ‘kid’ sunblock spray and stick. I had grabbed this one for a splash pad birthday party this weekend only to find out it’s messy and not eczema skin friendly. Either we got a defective bottle or it’s just the way it sprays: runny goops of sunscreen that takes awhile to dry properly (see photo). And when it dries it really does stick onto your skin as advertised (aka not breathable, pore clogging, will irritate sensitive/eczema prone skin). My youngest has eczema prone skin (that’s been flare up free for 3 years) had a severe break out on her arms after using this. And even for the sake of photo demonstration for this post my own sensitive skin got red/irritated. So does it stick-yup. Is it messy? Definitely. Easy to apply? No (your kiddos have to stay put until it dries). Did it provide sun protection? Maybe…? Sensitive skin friendly? No. Eczema skin approved? Definitely not. Recommended? Nope. We threw it away and requested a refund.
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Reviewed in the United States on July 12, 2023
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Andrea Thompson
Birmingham, US
★★★★★ 5
I love it
It does its work. I know many people don't like mineral sunscreens because of the white look on the skin( which it goes away once you rub it right), but I'm telling you, it's the only ingredient that it actually protects you from the UV rays and getting sunburn. The little one it's amazing and my kids love it because it's easy to put on.
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Reviewed in the United States on September 6, 2024
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Paul R
Birmingham, US
★★★★★ 5
Great children's sunscreen for sensitive skin
I really like this children's sunscreen. The facial stick that comes with it is quite small but it's still very convenient and works well. You do need to rub the facial stick in once it's applied to your child's face. The spray sunscreen also needs to be rubbed in as well because it comes out a little thick but is easy to rub in. There is not really a scent to it so my kids don't mind it being applied. My kids have sensitive skin too and we have had no problems as well. Would highly recommend!
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Reviewed in the United States on October 26, 2023
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Megan
San Leandro, US
★★★★★ 5
Best sunscreen for kids
Love this sunscreen, especially the face stick. It is easy to rub in and the spray nozzle has perfect coverage.
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Reviewed in the United States on July 24, 2025
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Teresa H.
Waukegan, US
★★★★★ 5
Great for sensitive skin
Very good for sensitive skin, since I t is natural and mineral a little light for darker skin.
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Reviewed in the United States on August 18, 2025

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