Ok, so PM9 vs CM9, polygonal rifling vs conventional rifling: what does this mean, and is one better than the other?
The PM9 is about $200 better than the CM9.
(Some of the difference is due to getting an extra mag with the PM9).
Ok, so PM9 vs CM9, polygonal rifling vs conventional rifling: what does this mean, and is one better than the other?