Awesome rail, less awesome nut. - Guntec USA 4in Ultra Lightweight Thin M-LOK System Handguard w/ Monolithic Top Rail

I was quite impressed with this rail. It is very well machined, super slim, extremely lightweight, and it's at a fair price. It feels great in the hand. I absolutely love how it looks as well. I have only one complaint, and that would be that I was having gas block trouble on my AR, as a result I was putting the handguard on and pulling it off a bunch of times, and the piece that the screws thread into is just aluminum. One of the screws on the bottom stripped out the last time I put it on. Granted, that is partially my fault for running the screws in and out so many times, but it would have been nice if they were threading into steel instead.