What mk4 do you have? Sfp LR/T? FFP ER/T? 34mm ER/T with locking turrets?
While the PMII is an order of magnitude better than a standard lr/t, the 34mm with locking turrets gives up nothing except illumination and zoom ratio when realistically comparing the two.
In reality a smidge of clarify, illum, larger zoom ratio is not worth the extra juice unless you have somebody footing your bills or you absolutely depend on such features for a duty weapon. Would a pmii be nice to have, hell yeah, but would a er/t m5a2 with a thousand to blow on training or competition make you a better shooter at the end of the day.
Hell one could take a 10x super sniper and probably out shoot half the internet if they get some good training and pushes themselves to get fundlementaly better.
Gucci gear is great and all but there have been some phenominal shooters doing incredible things with essentially modified deer rifles and 10x scopes for generations in combat. No reason one can't excel with something less than a pmII in a civilian role.
Hell,i would venture to say that 80 percent, of the pmii's on the for sale section are new or prestine condition. A lot of good they do sitting the safe.