Affordable option - Guntec USA Ultra Lightweight Thin M-LOK System Free Floating Handguard w/ Monolithic Top Rail

That is a decent enough handguard and mounts straight forward enough but sadly it missed a mark that it should've nailed first and foremost. The lines/angles of it do not match their own custom upper(s) which in some pictures it appeared to and was the main reason I purchased. The finish is ok albeit thin and not quite a match for their upper either but in my care I'm certain do that not a huge issue but in most others cases that may be a point of contention.