Starter SRS Upgrade Kit 3.0–3.5 Joule (Piston, Cylinder, Spring)

The starter package for your Silverback SRS. This upgrade kit makes your SRS consistent and quiet! The package includes the following Stalker upgrades!

The package includes the following Stalker upgrades:

• Stalker SRS Scorpion - Ultimate Edition
• Stalker SRS Fluted Teflon Cylinder
• Stalker Official Logo Patch

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

• Rapax RMS 3+ Spring (includes tensioners to increase FPS/Joule if needed.)

*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 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 Descriptions:

SRS Scorpion Piston

The Stalker Scorpion piston has an extremely modular design, developed from scratch on my drawing table a long time ago. It includes all the options players could want for their SRS piston. It features a unique concept where six weights form the body itself. As the piston is made up of these weights, it is also possible to extend it with additional weights (short stroke), which reduces the cylinder volume and joule output.

Fluted Teflon Cylinder

This cylinder is a fluted Teflon version of a standard cylinder and gives your SRS A1 or A2 an aggressive look. The inner coating is applied using a cold treatment process, allowing the cylinder to retain its straight shape—something that is often not the case with heat-treated cylinders. Not only does your SRS get an aesthetic upgrade, but the special inner coating also improves energy transfer with pistons, potentially increasing joule output if your piston has a properly sized cup.

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

Rapax 3J+ RMS Spring

The Rapax Modular Spring (RMS) series is manufactured to the same high-quality standards as the Light Pull series. Built for durability and performance, these springs are designed to provide the best sniper experience. Compared to the Light Pull series, the RMS springs are considerably shorter, have a slightly heavier pull, and offer quieter shots. Additionally, RMS springs are 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 my live streams, photos, and updates on Instagram, Facebook, or YouTube here:

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For more information about Stalker products, tech & crafting guides, please visit: www.stalkerairsoft.com