Id say, stock pneumatics, stock body with... terrible milling IMO.... Palmer's reg as stated, system x frame, and lightning drop, also stated earlier. Barrels... looks like, possibly dye xcel, cmi and a jt? Or some sort of other two piece very similar to the jt. Break out the brasso, toothbrush and lube! Looks like a project to me!!!
Yeah checked it out in person and everything looks to be in good shape minus the fubar milling and the bolt Is trashed. insides of the body are still like new so I may have it shaved clean and powdercoated.