SKU: 41472728182

Upgrade for SRS 16" (2.8 Joules)

Sale price$191.30 Regular price$212.56
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Upgrade for SRS 16" (2.8 Joules)The Upgrade kit turns your SRS into a sniper beast. This UPGRADE makes your SRS precise, consistent, and quiet! Load your magazines and dominate the field like never before. The package includes the following upgrades: Kraken SRS Ultimate Edition STALKER Scorpion Piston SRS (Ultimate Edition) "Morpheus" Dual Bore Hybrid Barrel (420mm) Kraken SRS Concave Bucking 70 (Gen 2) Teflon Lightweight Cylinder For SRS A1 A2 STALKER Official Logo Patch Carbon

The Upgrade kit turns your SRS into a sniper beast. This UPGRADE makes your SRS precise, consistent, and quiet! Load your magazines and dominate the field like never before.

The package includes the following upgrades:

We firmly believe that Rapax Springs are the best springs on the market. The results with these spring upgrades and Stalker components 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 can purchase this kit with the mentioned discount. If the products do not appear 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 BB drop.
  • Modular chamber design to fit most VSR-cut buckings, bridged and unbridged inner barrels, and nubs.
  • Modular cam section to interchange and use S1, S2, and S3 cams.
  • V-slot for the upper outer barrel screw of the SRS A1.
  • V-slot for the lower outer barrel screw of the SRS A2.
  • Side cut-outs on the body for future STALKER products.
  • Quick setup for easy inner barrel swaps, hop-up bucking changes, or inner barrel cleaning.

Scorpion Piston SRS

The Stalker Scorpion piston features an extremely modular design that was developed from scratch at my drawing table a long time ago. It includes every option users could want for their SRS piston. It is a unique concept where 6 weights form the body itself. Since the piston is built from these weights, it can also be extended with additional weights (short-stroke setup), which in turn reduces cylinder volume and joule output.

Morpheus 420MM 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 standard. Most brands use SUS303 steel because it is easier to machine. The corrosion resistance of SUS303 stainless steel is reduced due to its composition, as it is optimized for machining. The SUS304 steel we use is harder to machine but more durable and offers excellent corrosion resistance.

Teflon Cylinder

This cylinder is a Teflon-coated version of a standard cylinder. The interior coating treatment is a cold process, allowing the cylinder to retain 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 joule output 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 both A1 and A2 bolt handles.

This cylinder is compatible with various aftermarket pistons.

Rapax 2.8J

Galvanized to prevent rust, reduce friction, and provide extended service life compared to other springs.

*The box is for promotional purposes only and is not included*

You can follow all live feeds, photos, and information on Instagram, Facebook, or via our email 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: 41472728182

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4.4 ★★★★★
Based on 11 reviews
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L
Verified Purchase
Liz Ruiz
Carnegie, US
★★★★★ 5
Super fun for little dogs
Color: Burger Shape Assorted Color, Size: Small
These are so fun! I have two small dogs (10 lbs) and they both love them:) good squeak and just the right size for them. They get a little crazy with them but they love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
L
Verified Purchase
LeighP
Belleville, US
★★★★★ 5
Only One of Two Toys That Any of My Three Dogs Will Play With
Color: Burger Shape Assorted Color, Size: Small
I can’t overemphasize this enough: My pooches just aren’t keen on toys. I don’t know why. I’ve tried everything to get them to play with SOMETHING, instead of just lying around, or begging ME to do all the work to entertain them all the time. But whenever I buy or make one for them, all three just look at me like, “Meh. Bored. Try again, Ma.” Until I bought these. I’ll spare the reader a lot of details, but for whatever reason, these little, round, mouth-sized squeakers were a hit. There’s literally nothing special about their construction or functionality at all, but my dogs think they’re great. Kinda like how kids don’t care about the fancy, expensive toy you bought them, but prefer to play with the box it came in. 🤷‍♀️ I was concerned about them getting chewed up the first day (or worse, getting swallowed), or me just being driven insane with the squeaking, but only the latter has been an issue, and only the first few days. My dogs are very diverse mixed breeds and sizes, and all three think these are the best thing ever. My medium-sized bulldog is so adorable: He very gently picks one up, squeaks it a little bit, and then runs around holding it in his mouth until he decides to drop it (usually 30 seconds or less). Then my big dog swooshes in and steals it from him (It’s a “game” that only one of them enjoys). The biggest annoyance with these is having to go pick them up wherever my poorly-trained doggos drop them (but that’s my fault, of course). In a nutshell: They’re a hit at my house. Just be vigilant the first few days to make sure your dog isn’t interested in trying to eat them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 27, 2023
D
Verified Purchase
David
Lexington, US
★★★★★ 5
Hands down, the best dog toys on the Planet!
Color: Burger Shape Assorted Color, Size: Small
Our Miniature Pinscher absolutely loves squeak toys. We tend to get those long-bodied, no-stuffing animals which are great for tug-a-war, but on her own, she rips these suckers apart and removes the squeaker within a day of owning it. I occasionally buy a big bag of just squeakers and hide them in shoes and what not, but those have a 5 minute life span as she'll pull the little whistle right out. These latex squeak toys are a total blessing. They're super well made and just the perfect dog toy. We've had them a week, and she's been playing with two out of the package and not a tear or rip. The squeaker is very loud and the material is impossible to rip. She's getting tons of exercise running around the house with these things, and loves when I throw 'em. Love the colors and faces on the burger style. Easily the best dog toy on Amazon and we've been through 5 years worth of purchases.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 30, 2024
B
Verified Purchase
banjo player
Bozeman, US
★★★★★ 5
Great ball for small dog (3.5 pounds)
Color: Burger Shape Assorted Color, Size: Small
I have been looking for a ball that my 3.5 pound Maltese puppy can enjoy. Up until now it was small balls were difficult for my little Rosie to grab. These balls at first seemed to be too big. But after a few minutes Rosie grabbed one of the balls in her mouth and has been crazy for these balls ever since. They collapse so she can get her mouth on it. They squeak each time she bites down. When I toss the ball, they bounce around like crazy and make a squeaking sound. They are so soft that it would be difficult to break anything. Also since they are not round, they do not roll under furniture most of the time. I uploaded a video of my little Rosie fetching one of these balls. Great toy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2022
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 4
Dog doesn't chase balls but does chase these!
Color: Regular Ball Multi-color, Size: Medium
This is a great product. My Aussie mix won't chase regular balls, but will chase these for long periods of time. Its the only way I can get him excercise right now. He holds them in his mouth constantly and has lost interest in his kong stuffed toys. This is my second time buying. The first time was great but the second batch had hardly any sqeak and not much air. Seller- please check your quality control! I have to go to another seller if these aren't consistent, because my dog needs the squeak in order to be interested.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2025

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