The M85 is practically same as the carbine version of the M70, the Zastava M92, the only difference being in caliber, and in this case, the magazine design, as same as with original rifles, the M70 and M80.
The M85 is essentially identical to the carbine variant of the M70, the Zastava M92, with the main distinction being in caliber and magazine layout, similar to the original rifles, the M70 and M80.