I'm debating on whether to mill my M&P 2.0 compact 4" for a RDO which has an Apex trigger, Apex semi drop-in barrel, Floyd's magwell, and Trijicon sights, or just purchase a CORE and either move things over, or sell it as a very nice gun. Any thoughts? Milling for my new Holosun 507C would run about $220 including nitride at Maple Leaf. I don't know about whether the CORE is good enough out of the box vs. what I have now.

Thanks!