2194
M4 (T.Marui) CNC Polymer Bolt B
Pairs well with
This polymer Bolt B (part no. 133), manufactured through a precision CNC process, and the steel screw (part no. 134) form an extremely lightweight set specially designed for the M4 (T.Marui) GBB. While the polymer Bolt B is 13 g lighter than the original part, it offers good durability with greater elasticity than the original component. As a result, this polymer Bolt B weighs only 55% of the original part and helps increase bolt cycling speed while minimizing friction around the buffer tube.
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.