Marginal quality, overall - AIM Sports Inc AR-10 .308 M-Lok Handguard

The handguard itself is just okay. The material is much thinner than other handguards I have, but it works. My main problem is with the included barrel nut. The threads were extremely rough with lots of burrs. I put anti-seize on the receiver threads and ran the barrel nut on by hand. I torqued it, and then I tried to loosen it to re-torque, but it was seized on the receiver and would not budge. If I ever need to remove this barrel nut, I'll have to cut it and split it in half. I just hope the threads on my receiver are not damaged.