Great fitting handguard - Troy Industries SOCC Gen 2 Free Float M-LOK Handguard AR-15 Aluminum Battle Rail

Such a great fit. The tolerances are narrow, which is how I wanted it, but it does make for an extremely tight fit when you're trying to squeeze it over the low-pro gas block. The torx screws that attacth the system are robust, and the handguard is firmly attached to the barrel nut. My only complaint, and it's purely aesthetic btw, are the panhead bolts and how far they protrude from the surface of the handguard. I don't like the way that they look, but it absolutely is functional and is not going to be moving anytime soon.