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Discussion Starter #1
WTB: USP 45 Fullsize threaded barrel, new or used (used preferably) with either the same thread pitch as the mk 23 (16-1MM RH) or std 45 cal thread of .578-28.
My Gemtech came with a .578-28 piston and I bought a 16mm-1 RH for my mk 23 but I would like to use it on my UPS without buying another adapter seeing as they are about $90.

Please note these would only be from aftermarket manufacturers, as the factory USP threaded barrel comes with the 16mm-1mm LH thread pattern.

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