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Dec 08, 2025 - 12:34 PM
We’ve provided several answers to questions related to PolarStar JACK Nozzle | HPA Internal Upgrades , see some other helpful Q&A related to this product.
Question: What material is the nozzle made out of?
Answer: The jack nozzle is made from high-quality Delrin, a durable acetal resin known for its strength, low friction, and resistance to wear. Using Delrin ensures the jack nozzle is lightweight yet robust, making it reliable for high-performance airsoft builds.
Question: Any idea when you will have #11 in stock?
Answer: We have them on an accessory order so they should come back in stock soon.
Question: will the cyma umbrax work in an h and k mp5k?
Answer: It depends on which exact version of the MP5K you have: https://polarstarairsoft.com/pages/he...
Question: I'm looking to find the right nozzle for my cyber gun para featherweight 249 I cannot figure out which on I would need.
Answer: It should be the #14 per the chart on P*'s website: https://polarstarairsoft.com/pages/he...
You can also confirm with them first before ordering by reaching out to cs@polarstarairsoft.com
Question: Im looking to build the polarstar Jack in my KAA Stoner 96. would this fit into it and if not which one should I use?
Answer: Looks like Nozzle #11 is what you would need for that gun.
Question: What nozzle do I need for an m249 featherweight? I've got a #14 and seem to be having feeding issues.
Answer: That's what's P* has listed on their website. Are you powering the box mag or using an M4 mag on the gun?
Question: Is this in anyway an upgrade from stock an are there any other upgrade parts for the jack, say like the lightning banjo for the fusion engine
Answer: No, this would not be an upgrade. It is just a standard nozzle for the jack
Question: Which nozzle should G&g ARP9 use (that super short gun)? THanks!
Answer: The standard M4 nozzle.
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