Question about barrel replacement on MKII Standard and....?

[Nogunsmith4me]

This might be a dumb question sorry, :roll: but.., can a standard MK-II b-barrel be replaced with a MK-III Hunter Barrel/Receiver.

Second question: the front sight on my Standard MK-II was replaced with a new OEM but sits to high making me hit the target about 1" higher, how can I correct this problem?

 

[ab4ka]

The barrel part I don't know about, but if your front sight is too high it would make you shoot low. Is your rear sight adjustable? If it is, try lowering it.