SKU: 41472728182

Upgrade for SRS 16" (2.8 Joules)

Sale price$191.30 Regular price$212.56
Save 10%

Pay in installments of $53.14 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 5 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
H
Verified Purchase
Ha Vuu
Fort Morgan, US
★★★★★ 5
A gentle miracle for my skin!
I've been using this product for about a month now, and I'm honestly so impressed. I have acne-prone and sensitive skin, and this Ordinary product for oily skin has made a significant difference. From the very first week, I noticed my skin was softer. It’s lightweight, absorbs quickly, and doesn’t feel greasy at all. I use the Squalane cleaner both in the morning and evening. In the evening, I use natural moisturizer and B5 after washing my face. What I love most is that it’s affordable but delivers real results. No fragrance, no irritation—just effective skincare. I’ve already recommended it to my friends and will definitely repurchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 26, 2025
M
Verified Purchase
Merissa
Louisville, US
★★★★★ 5
Smoother skin
My face got so much smoother after using this product! Definitely recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
D
Verified Purchase
Deneane Brown
West Palm Beach, US
★★★★★ 5
It works
It be works
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
C
Verified Purchase
Candie McNeil
Draper, US
★★★★★ 5
A must have for your daily skin routine
If you're thinking about getting this just get it...I've been using this for less than a week along with Dr. Melaxin other products and this was definitely a game changer the lines in my forehead are smoothing out, my skin looks very youthful, and my skin definitely gives glass...I've struggled with large pores for awhile and I'm definitely seeing a difference. This is just an all around must have serum to add to your daily routine
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
R
Verified Purchase
Renee R Johnson
Omaha, US
★★★★★ 5
Luxury feel!
This serum is a critical part of my daily skin routine and I plan to purchase it again! My face feels great and hydrated with no stickiness!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2025

recommand products