Only problem is first gen apex safeties dont work well with folders.
Hbi , parker mountain , maniticore etc aftermarket safeties are all good to go. I'd recommend Parker mountain or the newer apex safeties. I hated the HBI AK style because it reverses your controls. With the ak style safeties up is fire down is safe while every other safety option safe is up and fire is down which is how 90% of all firearms come from factory including real AKs.