Whitney Kennedy Rifles

A buddy & I are hard core Whitney Kennedy fans. We're looking for rear sights 1/2" dovetail, sling swivels & front sights in order to complete the restoration on a couple of rare W-K's. A 28" bbl set trigger .44WCF "S" lever & a 1/2 magazine .44WCF loop lever . Whitney lever guns are built like bank vaults, shoot well but don't get nearly as much "press" as Winchester lever guns. Any W-K nuts out there, pipe up! Any parts sources for these fine Old West guns??