Cockers came with bascially 2 different types of removeable feeds. All WGP cockers (and compaines that used wgp body blanks)came with standard Male threads on a tube that is pressed into the top of the body. The feed threads over this tube like a nut on a screw. Many after market cocker body makers choose to use the oh so commonly available Angel style threaded feed tubes. The only other threaded feeds on a cocker that I know of was the very first couple of Jackal RDL's, some used smartpart threaded feeds. Don't argue, cause I own one, lol.
enjoy,
kmac

http://www.customcockers.com/forum for for all your autococker questions/needs

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