





STAL-122
CNC Aluminium Panthera Fat Concave Nub (AAP-01, Kraken, MWS, AEG)
Pairs well with
CNC Aluminium Panthera Fat Concave Nub (AAP-01, Kraken, MWS, AEG)
We all know the VSR Panthera Nub, widely used in the VSR community, so we designed the Panthera Fat Concave Nub to fit other hop-up chambers such as the Stalker Kraken S3 arm, the AAP-01 CNC wheel hop-up chamber, or the Laylax custom chamber for MWS. This Panthera Fat Nub will likely fit many other chambers as well.
The shape and dimensions of this nub are designed to work best with VSR-style buckings such as Kraken Concave Bucking, Sr-Hop, Maple Leaf Autobot/Decepticon, etc., or AEG buckings with an internal patch of approximately 5 mm.
This package includes 1x CNC Aluminium Panthera Fat Concave Nub (AAP-01, Kraken, MWS, AEG).
- Increases range and accuracy.
- Compatible with Stalker Kraken S3 Arm.
- Compatible with Action Army AAP-01 Adjustable Wheel CNC Chamber.
- Compatible with MWS Laylax Custom Chamber.
- May be compatible with other AEG, sniper, and pistol hop-up chambers. Works best in standard 2J+ setups.
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For more information on Stalker products, technical guides, and manufacturing details, visit: www.stalkerairsoft.com
Complimentary shipping & returns

CNC Aluminium Panthera Fat Concave Nub (AAP-01, Kraken, MWS, AEG)
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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Shipping Information
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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?
We ship in-stock orders twice a week, on Mondays and Wednesdays. Orders placed Monday or Tuesday leave on Wednesday; orders placed Wednesday to Sunday leave the following Monday. Mainland Spain usually receives them 1–2 business days after dispatch. A tracking e-mail follows automatically.
Can I change or cancel my order?
Yes, e-mail info@skirmshop.es or use the contact form before your order’s shipping day (Monday or Wednesday)
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.
