
STALKER Scorpion SRS/TAC41 - High Joule Piston Cup
This SRS/TAC41 piston cup offers a very easy reloading but high joule output while remaining to be silent by adjusting your airbrake properly.
The Stalker High Joule Cup can turn your 2j spring powered setups into 3j setups and 3j setups into 4j setups, for example the Stalker scorpion piston with stock SRS or TAC Silverback spring and 420mm barrel+stalker cylinder shoots ~2j on .48 BB.
This cup works with either in SRS cylinders or TAC41 cylinders. Please use a little bit of oil lubricant for perfect results, we recommend motor oil silicon grease or similar.
For reference, a Blue 2J+ spring is giving 3~ joule in a SRS with Stalker SRS cylinder + 420mm inner barrel.
Stock cylinder will give a little less joule. Results may vary depending on the cylinder being used.
We also offer an extreme silent piston cup which reduces the joules around normal spring output but is easier to make extremely silent.
- Zero loading friction.
- Thumb block seal.
- High Joule Output.
- Fast Reloading (Lightest pull) because you use a weaker spring but get high joules.
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For more information about Stalker Products, Tech & Crafting Guides Please Visit: www.stalkerairsoft.com
Pairs well with
In stock! Ships within 1-2 business days.
Complimentary shipping & returns

STALKER Scorpion SRS/TAC41 - High Joule Piston Cup
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
Do I need an account to order?
No, but an account lets you save addresses, review orders, download invoices and manage wish‑lists.
When will my order ship?
Orders placed before 15:00 CET on business days ship the same day if the
items are in stock. A tracking e-mail follows automatically.
Can I change or cancel my order?
Yes, e-mail orders@skirmshop.nl or use the contact form before 15:00 CET on the shipping day
with your order number. After dispatch, changes aren’t possible.
Do you ship outside the EU?
Yes, the shipping rates and import taxes will be calculated at checkout.
What is the minimum age to buy an airsoft replica?
Please check your own governments regulations for the minimum required age.
Don't forget to send your ID.