I used a Magpul Zhukov side folding stock on mine. Works with the slant cut receiver just fine. Another arfcommer, IIRC emt1851 loaned me a tap in 14x1mm,Left hand thread and I tapped the barrel with it. Then installed an A 2 style flash hider for functionality purposes. Added a Geissele AKT trigger. It runs flawlessly. Also added an Ultimak railed gas tube and a Primary Arms RDS.
Super handy set up that a great shooter. I was not looking to make a clone of anything, just wanted an efficient and reliable rifle for multiple purposes. I succeeded in my goal. It's an excellent choice for things that go bump in the night.