Hello Everyone. New to the forum & looking for information on some MG08/15 parts I recently inherited from my grandfather. Any information you have about the parts in the pictures below would be very helpful, as I'm trying to figure out what they are exactly before I decide what to do with them. Barrel 1 & 2 - MG08/15 barrel, marked 'S' & '4843' on one side, 'S' & '791' on the other, w/ screw-on barrel attachment. Don't know at all what the screw on attachment is for. Doesn't look like a compensator, so any info. would be appreciated. Receiver 1, 2, & 3 - MG08/15 receiver, marked '3760 MG08/15 Gw. SPANDAU 1917'. Receiver is in pieces, but all parts are there for assembly. Any descriptions of what each individual piece is would be helpful. Also, any idea of the value of these pieces? Thank you so much for your help & please ask any questions if I've been vague.