




STAL-37
Kraken SRS Concave Hop-Up Bucking Set (50/60/70) Gen 1
Pairs well with
Kraken SRS Concave Hop-Up Bucking SET (50/60/70)
The improved sealing lips on the front and rear of this bucking have been meticulously designed and prototyped three times to ensure optimal sealing and performance in the Kraken SRS chamber.
This bucking is engineered specifically for use with the SRS Silverback backplate and the Kraken SRS hop-up chamber. Its unique design fits perfectly with the silverback nozzle size, eliminating all air seal issues. Plus, the need for PTFE tape is now obsolete.
The unique dual-side fin design, combined with the concave bulge and internal alignment feature of the Kraken hop-up chamber, ensures your SRS setup remains perfectly straight and delivers ultra-accurate shots.
Pink Bucking = 50°
Purple Bucking = 60°
Orange Bucking = 70°
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Youtube: https://www.youtube.com/channel/UCWsBiSHlu-lbcnGQWAkeJWQ
For more information on Stalker products, technical guides, and build tutorials, visit: www.stalkerairsoft.com
Complimentary shipping & returns
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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Customer Support
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FAQ’s
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Contact Us
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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.
