SBA-BPS-19
TAC-41/SRS Piston Cup with Polycarbonate Precision Airbrake Kit (x7)
TAC-41/SRS Piston Cup with Polycarbonate Precision Airbrake Kit (x7)
An airbrake reduces the impact noise generated by the piston hitting the cylinder head by creating an air cushion just before contact. This system can significantly reduce the overall firing sound of a bolt-action airsoft replica, with minimal or no loss in muzzle energy when properly tuned.
This new version of our airbrake kit replaces the previous three-piece aluminum set with seven finely graduated airbrakes, injection-molded in reinforced polycarbonate, a high-performance engineering plastic known for its durability, resilience, and precision. The polycarbonate construction ensures no compromise in strength, reliability, or performance compared to the former aluminum design.
The seven airbrakes (sizes XXS, XS, S, M, L, XL, XXL) come attached to a single sprue, allowing users to easily select and detach the size that best suits their performance goals. Sizes XXS, M, and XXL correspond to the previous aluminum models, while the four additional sizes allow for much finer adjustment of damping effect, letting players optimize noise reduction without sacrificing power.
How to choose your airbrake:
Test your replica with a chronograph using each of the 7 airbrakes. You should get a curve that starts with a stable plateau before dropping off sharply, as shown in this example (see chart below). Choose the longest airbrake that does not reduce the replica’s power — in this example, it’s the 12 mm airbrake.
Compatibility: – Original SRS piston (SBA-BPS-12 [discontinued] and SBA-BPS-13)
– Original TAC-41 piston (SBA-BPS-30)
– Variable mass piston for SRS (SBA-BPS-18)
– Variable mass piston for TAC-41 (SBA-BPS-31)
– SRS Push piston (SBA-BPS-14, discontinued)
– SRS Push bolt kit (SBA-BBA-17, discontinued)
Not compatible with:
– TAC-41 GBB hop-up unit and cylinder head (SBA-HOP-31 and SBA-CYL-33)
– Early SRS A1 pistons (SBA-BPS-02, SBA-BPS-03, SBA-BPS-04 – all discontinued)
SBA-BPS-19
Pairs well with
In stock! Ships within 1-2 business days.
Complimentary shipping & returns
TAC-41/SRS Piston Cup with Polycarbonate Precision Airbrake Kit (x7)
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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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.