MDRX HPA Hop Up unit
MDRX HPA Hop Up unit
Especially designed for the MDRX HPA.
A built-in feeder guides BBs directly toward the front face of the nozzle, ensuring extremely reliable feeding, perfect BB alignment, and complete elimination of double-feeds and misfeeds.
The HPA engine and hop-up chamber are designed to self-align with each other for maximum consistency.
This chamber accepts standard AEG-type hop-up rubbers, however Silverback strongly recommends using our Bolt Action type bucking (SRS/TAC41/VKS) for optimal air seal performance.
All MDRX HPA rifles are factory-equipped with a Silverback SRS 80° hop-up rubber. A harder bucking provides improved stability and consistency with this HPA architecture.
Polycarbonate hop-up unit for AEG hop-up rubbers,
TCD ring design, incremental “click” adjustments using 2 ball plungers, 36 positions ranging from 0 up to 750 µm with the low nub (standard bbs configuration), and from 500 up to 1250 µm with the high nub (heavy bbs configuration).
Pairs well with
In stock! Ships within 1-2 business days.
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?
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.