I recently acquired a new Bersa Thunder Combat and really enjoyed putting 250 rds downrange this weekend. That said, I was surprised to find after cleaning it that the front sight fell to the floor. It doesn't appear to be pegged or staked in any way and it certainly isn't held by a screw. Am I correct in assuming it's merely glued in place? In any event, I need recommendations for a fix or I'll be visiting a gunsmith this weekend. Thanks.