How to get the Halo Music Kit in CS:GO?

Honestly, not worth the hassle.

Getting the Halo Music Kit in CS:GO isn't rocket science! First, you gotta have the 'Master Chief Collection' on Steam. Once you got that, make sure your Steam accounts are all linked up properly with CS:GO. After that, boom - the Halo Music Kit should magically appear in your CS:GO inventory. Remember to check your inventory if it doesn't pop up right away; sometimes it likes to play hide and seek.

Just buy it from the Steam Market if you're not into the whole owning 'Master Chief Collection' thing. Prices fluctuate, but hey, sometimes it's just easier to throw money at the screen.