try putting some tape inside the front/bottom handguard retainer. It will help push the lower handguard back more and hold it in position guys.
Mine did the same with a aftermarket forend. Had to add the metal bracket back on the aftermarket forend for it to stay on...
try putting some tape inside the front/bottom handguard retainer. It will help push the lower handguard back more and hold it in position guys.



























