Too tight! - Aero Precision AR15 Enhanced M-LOK Handguard/ Barrel Nut Not Included

The unit came and was to be installed on the same day. Old handguard slid off without any issues. Putting this on was in issue from the start. All the videos I see are simple slip on but the unit I get was sooo tight. It went on smooth for about 1/10th. After that it was too tight to go on by itself. So I figure a little persuasion, a little gun oil and it'll be fine. Nope. It gets half way and will not come off nor go further. Now I have a frame which is mostly on but cannot move off or sit the way it's supposed to. Optics planet cannot do anything because it was already installed. Waiting to hear from AP. At this point, the rail is nearly destroyed, and my upper is ruined.