Print It. Build It. Make It Yours.
Free 3D files, engine specs, and community builds. The PolarStar 3D Print Hub is live.
The Alignment Revolution Is Here
Introducing the PolarStar Direct Attachment. No more shimming. Available now for F2 and Jack.
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Made in the USA
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Trusted by 70,000+ Players Worldwide
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Veteran-Owned
Trusted by the best
The Engines Trusted Worldwide.
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Kythera SA (Semi Auto)
4.71 / 5.0
(231) 231 total reviews
Regular price From $296.00 USDRegular price$302.00 USDSale price From $296.00 USDSale -
Fusion Engine™ Drop-In Kit
4.89 / 5.0
(202) 202 total reviews
Regular price From $463.00 USDRegular price$531.00 USDSale price From $463.00 USDSale -
F2™ HPA Conversion Kit
4.85 / 5.0
(119) 119 total reviews
Regular price From $451.00 USDRegular price$460.00 USDSale price From $451.00 USDSale -
JACK™ HPA Conversion Kit
4.87 / 5.0
(253) 253 total reviews
Regular price From $336.75 USDRegular price$343.50 USDSale price From $336.75 USDSale


