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Mar 22, 2026 - 09:52 AM
We’ve provided several answers to questions related to PolarStar M249 Hollow Grip Bolt and Nut | HPA M249 Hose Bolt , see some other helpful Q&A related to this product.
Question: Can I use this bolt and nut with the F2 HPA unit?
Answer: Yes, this m249 bolt is compatible with the F2 HPA unit from PolarStar. The F2 is a modular HPA engine, and having compatible mounting hardware helps with installation and air routing.
Question: Would one of your IGL’s be able to fit your n this bolt? Or would it be best to go with a macro line?
Answer: Nope, you'll need the macro line
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