- Numbered sizing ensures a correct air seal
- For PolarStar Airsoft JACK™ HPA engine
- Avoids manufacturer-specific inconsistencies
For PolarStar JACK™ HPA engines, you need one of these PolarStar Airsoft JACK™ Nozzles! They are sized using a numbered system rather than being labelled by rifle model. This is because nozzle length can vary between replicas of the same platform, depending on the manufacturer. Differences in gearbox shell thickness, hop unit positioning, or internal design can all affect how far the nozzle must reach to achieve a proper air seal.
To ensure the best possible compatibility, PolarStar produces a wide range of nozzle lengths. Each numbered nozzle corresponds to a specific overall length, and once you determine the correct number for your replica, that nozzle size is universal across all PolarStar HPA engines that use the numbered nozzle system. This means if your rifle requires a #1 nozzle, you will use a #1 nozzle regardless of whether you are installing an F2™, Jack™, or other compatible PolarStar engine. Some model-specific Kythera™ systems are excluded from this system.
Check out the "Full Description" for the replicas most commonly associated with the available nozzle sizes. These are guidelines only, as compatibility can extend beyond the models listed.
Fast Delivery
Delivery & Postage
Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.
For more information please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.
UK 3-5 day Standard
£6.95
From
Dispatched with 24hr UK mainland
£8.95
From
Highlands / Islands
£24.99*
From
* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
Nozzle Variants - Sizes and Applications
#1 Nozzle:
Most commonly used with TM M4 and M16 platforms, A&K PKM, TM MP5 A and SD, ICS MP5 A and SD, and G&G KAC SR-25 E2
Tip length: 1.205 inches
#2 Nozzle
Most commonly used with CYMA AK platforms, CYMA MP5 A and SD, and G&G UMP
Tip length: 1.242 inches
Package Includes
- PolarStar Airsoft JACK™ Nozzle
Specification
General
Parts & Accessories Type | Internal Parts, HPA Internal Parts, |
|---|---|
Internal Part Type | Nozzle |
 | Custom Parts Upgrade Parts Use of HPA is considered a "modification" and is not covered by your warranty. |
Name Variant | #1, #2, |
Construction
 | White |
|---|---|
Internal Part Construction | Polymer |
Part Specific
Part for Power Source Type | HPA |
|---|
Size guide
Parts Fitting
Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff.
Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.
We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!
Unique Parts
Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.
Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.
If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.
For more information with fitting parts, or should you require help, feel free to get in touch with our Workshop Department via our Contact Us Page.
Terms and Conditions relating to parts fitting can be read on our Terms and Conditions Page.