M4 Hop-Up Chamber
Hop-Up chamber for M4 type.
Retro ARMS chambers has parts made at CNC machining center out of EN AW 2007 and EN AW 7075 aluminum.Regulation wheel is from polypropylen . Impression regulation is very effective, because lever does not bend thanks to the used material. Its design allows precise Adjustment in 2mm range with step of 0.01mm.
Chamber is 100% compatible with the Retro ARMS gearbox, but it also fits into standard zinc gearboxes. However be aware that we can't guarantee absolute and precise fitment.
Hop-Up chamber is equiped with o-ring against BBs falling out.
Hop-Up nub is integrated into press lever. This way it won't fall out during assebly/diassembly. Optional press levers can be bought for experimental settings.
C clip isn't included. You can use former one, or order Retro ARMS's indestructible C clip.
Chamber's surface is anodized in black and red color.
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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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.