I don't think I've ever shared my Scar17 setup before but here's the details.
Its life started out as a black Scar 17 with an Acog TA11. Immediately bought and installed a Geissele Super Scar trigger. Absolutely loved the setup and could quickly nail small steel targets out to 300+ yards without a problem.
Then the itch started... after shooting it frequently in the hot summer heat, the black rifle would get scorching hot. I decided I wanted to cerakote the rifle FDE, but I wasn't sure which shade. I also wanted additional magazine capacity. As much as I liked the factory mags, I sold them all and got Magpul 25rd Pmags. They only came in black so I had to cerakote the mags separately. I also bought a Stryker Enterprises lower so I could run the Pmags. This also lets me use regular AR15 grips so I went with my favorite... the Magpul MOE. The 25 rd mags are not noticeably heavier fully loaded than the factory 20 rounders. I can still shoot them comfortably from the prone, but I can also use my KAC SR25 metal mags if I need to reduce the magazine height. I also bought a KRG MREX handguard which really made the rifle extremely handy and maneuverable. I can't recommend the handguard enough! But my favorite upgrade would actually have to be the Stryker Enterprises charging handle. It's possibly my most comfortable and easiest to grab charging handle of all my rifles. It's angled so you never bust your knuckles on optic mounts. I also use Magpul selector levers as I find them easier to grip. I used to run the Stryker Enterprises 90 degree selector cam, but I switched back to 45 degrees out of preference.
Also SBR'd the rifle and had the barrel cut back to 13". Installed a Surefire Warcomp so I could mount my suppressor. Sold the Acog and bought the Elcan. Really like the Elcan but I do miss the simplicity and light weight of the Acog so I'll probably get another Acog in the future. Maybe the LED versions to save myself the headache of replacing tritium down the line.
Only possible change I'd make is maybe making the buttpad black. But that's just aesthetic preferences.
Edit: Forgot to mention, I ended up going with Magpul FDE so it matches all my Magpul furniture.