Answer
Mar 22, 2026 - 09:51 AM
Yes, this m249 bolt is compatible with the Jack HPA unit from PolarStar. The Jack is another HPA engine designed for easy installation, and using the correct m249 bolt ensures a secure fit and optimal air flow.
Can this be used with the Jack HPA unit? PolarStar M249 Hollow Grip Bolt and Nut | HPA M249 Hose Bolt
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Open Mar 22, 2026 - 09:51 AM
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PolarStar M249 Hollow Grip Bolt and Nut | HPA M249 Hose Bolt
This PolarStar M249 Hollow Grip Bolt and Nut is what you would find included with your PolarStar HPA unit such as the Fusion Engine, Jack, F1, or F2. This Bolt comes with a channel through the center so that you can run your macro line through it and your pistol grip. Please keep in mind...
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