Originally Posted by
idahoron
I have a BK 92 that is a 54 cal. I know it is much like the MK85. What I don't know is the difference between the Bighorn and the MK85. Anyone know the differences? Ron
The three larger differences...
The Big Horn is a 26" barrel - the MK is normally 24" although there were some 22" barrels
The receiver of the Big Horn has been reshaped in the fact that it round instead flat topped.
Also the breech opening has been closed up on the left wall of the receiver where the MK was open on both sides.
This statement is not correct - the MK is closed on the left side...
Same twist in the bore 1-28, and again there is an exception in that some 45's were 1-24.