Agency arms m4 handguard - Agency Arms Benelli M4 Compatible Modular MLOK Rail

I ordered the Agency Arms Mlok handguard for the Benlli M4 and unfortunately, had an issue with the handguard fitting! The handguard would not properly fit the the barrel and loading tube of the gun and wouldn't sit flush with the reciever. This was after following the exact directions Agency Arms provides and watching their install video. Furthermore, when following the install instructions, the suggest the proper foot pounds of torque and also to use locktight. Unfortunately, doing this made the set screws extremely hard to remove, causing 3 of them to strip. Once these screws strip, there is no way to remove this handguard from your barrel. Continuing this unfortunate circumstance and many scratches to my Benelli later, I ended up having to go to Ace Hardware to buy a grinder for $150 to cut the handguard off. I am currently working with Optics Planet to get a store credit, but I'm waiting for approval by their Gear Team to determine whether this is a manufacturer defect or user error. I have 2 Daniel Defense M4A1's and have been putting together/wrenching guns for years, never had I had an error or circumstance like this. Depending on the outcome of this, I will make another review based on how Optic Planet handles it.