Handguard stuck on had to send to gun smith to remove - Lancer Systems SIG MPX Carbon Handguard

Mpx handgaurd removal is remove front retainer pin remove handguard, put on new handgaurd , close front retention pin. The new handgaurd stuck on. The bottom screw with the stabilizimg screw and pin was also glued shut from factory and i bent an allen wrench trying to loosen it like on the the stock handgaurd. Dropped it off at a gunsmith two weeks ago. I hate this so much