Bought a MKIV lite back in the fall, and got some upgrades during Black Friday deals..  it's balls cold here today, so I got a stew going and decided to get busy.

Holosun 507c
Maddmacs RMR plate
Tandemkross halo, extended mag release, and get a grip kit
volquattzen accurizing kit
and 4 more magazines.

the VQ kit made all the difference in the trigger.  Highly recommend.  All in, took me around 3 hrs, due to installation all at once.  Did a lot of flipping back and forth through the various videos watching how/which steps I needed to do next.

if you're on the fence, just do it.  I'm pretty much an idiot when it comes to this stuff.  If my dumb ass can do it, you can!

I'd add a photo, but don't know how from my phone..

I’m glad it turned out good for you.
If you figure out posting photos, please do so.
My simple brain likes photos

Nice!   Just needs a suppressor for more fun.

the single best gun related purchase in my opinion. a .22 can is as close to Hollywood quiet as it gets and i giggle like a little kid everytime i take mine out.

No worries on the suppressor!  Actually bought the gun to run a DA mask on