The only really great AND inexpensive solution for scope mounting on a Mosin-Nagant 91/30 or variants. Install a scout scope using this very rigid mount that attaches directly to the barrel (and not to a half disassembled original tangent sight.) That is too many pin connections for me and too much modification of the original sight. This mount in not just for airguns; it has two vertical set screws for preventing fore and aft movement on high-power rifles like the M-N. The .22 cal. 0.375" dovetail mount fits the 0.428 dovetail sight groove on the M-N barrel that holds the original tangent sight. I'm happy.
Pros: High quality and reasonable price = great product
Cons: None.
This review was written in the old system and had content requirements that are different than reviews written today.