Assuming your LE/Mil and eligible for that purchase, it’s not a bad price. Having suppressor heights sights would be a plus, saving you from future purchase when you get an optic installed. The pro-cut series are strictly aesthetics. Almost all the slides have to maintain the same weight all across to be able to function with the oem recoil spring assemblies. The pro-cut has its relief cuts externally visible, whereas the regular slide will have its relief cuts inside around the striker area. Either way, they will both be of similar weight. Advice for your future compact/carry slide purchase, it’s cost effective to purchase a whole new gun. Then you can part it out and sell each individually. Just watch out for that signess to keep it and build up your stockpile of p320 parts. Then you’ll convince yourself that those extra slides need their own fcu and grips. Good luck with your purchase!