Handguard was great, barrel nut had issues - Guntec USA Ultra Lightweight Thin M-LOK System Free Floating Handguard w/ Monolithic Top Rail

The handguard itself I received was great quality and exactly as described. the black finish matched my receiver very well and is slim enough for a good grip.

The barrel nut looked a little scuffed but i didnt think anything of it until i went to install it. It wouldn't torque past halfway on my upper. Upon further inspection the threads in the nut had some caked up my metal shavings in them. My upper looked fine and was all mil spec etc so i know it was the nut. I used a metal pick to clear the threads and just torqued it. It went on with some encouragement. Its for a 22lr upper so i wasnt to concerned with it coming loose. If it was for a 5.56 upper i definitely wouldn't have trusted it and called for a new barrel nut.