Going through a stack of stuff and found this barrel amongst a bunch of MG34 barrels.
As you can see it is almost identical to a standard MG34 barrel except for the locking shoulders for the trunnions.
The barrel is EXACTLY like all other MG34 barrels dimensionally except for the shoulders which are half the width and extend back further.
The barrel is German marked and I believe BSW coded.
Looking through references and an Internet search, it does not appear to be for an MG30, MG15, MG13, MG34/41, MG34S.....it MAY be MG17 or MG81, as I have not found a pic/documentary proof of those designs.........so what is it ????
MG34 on left for comparison
MG34 on bottom for comparison