Stickman posted this in the "Interesting Finds" thread in the Stickman forum. (I meant to put this in AR General)
A pretty nice 2 piece FF that uses the factory barrel nut. Mimics the KAC rail height and width. Installed:
https://i.imgur.com/nZZWM0F.jpg
https://i.imgur.com/4IYWARv.jpg
https://i.imgur.com/o4SU4pe.jpg