FOR BORE UP PISTON HEADS ONLY!!!

Made to replace standard bore up piston head bodies.  Most bore up piston heads are made from plastic and are not designed to handle heavy spring upgrades (m150+).  Simply remove rubber bore up head from plastic backing and set into place on the aluminum backing.

Please note:  This part does not include: Rubber Bore up head, O ring and backing. Some modification may be required, built to spec for most Bore up piston assemblies. 100% Made in the USA.

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