SKU: 70285345824

Ultimate SRS Upgrade Kit (570mm Barrel 2.0–2.5 Joule)

Sale price$141.30 Regular price$157.00
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Ultimate SRS Upgrade Kit (570mm Barrel 2.0–2.5 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 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 570MM Inner Barrel Stalker SRS Fluted Teflon Cylinder Stalker Official Logo Patch We

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 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 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 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.

Product Description:

Kraken Hopup Chamber

  • Easy setup for both experienced and new players (~2-minute bucking swap)
  • 100% self-alignment system for perfectly straight setup
  • 100% Straight / 100% Seal patented Kraken bucking
  • Adjustment wheel head cut-out for easy adjustment
  • O-ring guided 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 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 products
  • Fast setup for easy inner barrel or bucking swaps and barrel cleaning

SRS Scorpion Piston

The Stalker Scorpion piston features an extremely modular design that was developed from scratch. It offers every option players could want for their SRS piston. This unique concept uses 6 weights that form the piston body itself. Since the piston is made up of these weights, it can be extended with additional weights (short-stroke), which reduces cylinder volume and joule output.

Morpheus 570MM Inner Barrel

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

We use stronger and more durable seamless SUS304 steel to raise the standard. Most brands use SUS303 seamed steel because it is easier to machine. 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 superior durability and excellent corrosion resistance.

Fluted Teflon Cylinder

This cylinder is a Teflon fluted version of a standard cylinder, giving your SRS A1 or A2 an outstanding look. The inner coating is applied using a cold treatment process, allowing the cylinder to retain its perfectly straight shape—unlike many heat-treated cylinders. In addition to enhanced aesthetics, the special inner coating improves energy transfer with the piston, potentially increasing joule output if your piston has a properly sized cup.

  • Fully compatible with both Silverback SRS A1 and A2 receivers
  • Compatible with both A1 and A2 bolt handles
  • Works 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, these springs provide an exceptional sniper experience. Compared to the Light Pull series, RMS springs are considerably shorter, have a slightly heavier pull, and deliver quieter shots. They are also electrically coated to prevent rust and ensure smoother operation on the spring guide.

*Box shown for promotional purposes only and is not included*

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: 70285345824

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Alexis
Grantham, US
★★★★★ 5
Impressive!
Pattern Name: Graceful(12 Sets)
These are very pretty looking off and on the face. The sticky backing can be tough to peel off without damaging things, my first attempt landed me with a destroyed sticker, be careful removing them from the film because i started with my finger and its very easy to accidentally rip the gems off the backing. I used a sewing pin to get under it and lift it up enough to grab it and it peels off easily after that, so definitelygive that a try so you dont learn the hard way like i did. Also it stayed on my face shockingly well for a good 10 hours. sweat made it a bit wiggly when it got really wet but even when it got soaked down I was able to just press or tap it back onto my face while drying my face with a fan and it sticks again 98% as well as a fresh one does once it's dryer, I was worried about sweating these off but I hardly had to check on or adjust them much once the sun set and things cooled off. The backing does a good job and you can't really see it behind the gems unless you're really tying to see it. I definitely don't regret buying these one bit and would recommend for others!
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Reviewed in the United States on April 18, 2026
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Brandi L.
Charlottesville, US
★★★★★ 5
Gorgeous!!
Pattern Name: Noble(12 Sets)
These face jewels are the perfect addition to our Mardi Gras costumes every year! We choose color based on our theme for the year. They are easy to use, just peel and stick! You can mix and match or use as is! So many great options and they last for 12+ hours! We usually apply over makeup and no matter the weather (cold, hot, rain or wind) these jewels stick for hours! Price point it amazing!
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Reviewed in the United States on April 9, 2026
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janine thompson
Dallas, US
★★★★★ 5
Cute
Love face gems
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Reviewed in the United States on February 4, 2026
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KatLynn Wright
Charlottesville, US
★★★★★ 4
Beautiful
Pattern Name: Noble(12 Sets)
Beautiful! Some of the smaller pieces didn't want to come off the sheet with their backing though
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Reviewed in the United States on January 12, 2026
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Niki Burns
Louisville, US
★★★★★ 5
Impressed with the hold!
Pattern Name: Noble(12 Sets)
These were a hit at my daughter’s 5th birthday party! Mermaid themed and all the guests got to wear these jeweled face masks and they lasted the entire party! Great stick and lasted longer than I expected!
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Reviewed in the United States on April 8, 2026

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