Little help w/ issue?

Hey folks. Was out with brand new factory complete MARs L MRP and put about 60 rounds down range. Suddenly noticed trigger would not reset after each pull and was stuck in place after each round. Had to force safety to safe position then back to fire to get trigger to reset. Happening about every 6 rounds. Pulled lower off and noticed this piece of metal sitting near rear take down pin. It looks like spring leg piece but upon inspection both hammer and trigger springs are intact and seem fine. Non curved portion does look broken/sheared off.

I’ve done a once over and checked everything racking my simple brain as to what it could be. Even consulted trusty old rifle blown out parts diagram. I can’t for the life of me figure out what this could be. It is still having same issue as described. Any thoughts?

Hey folks. Was out with brand new factory complete MARs L MRP and put about 60 rounds down range. Suddenly noticed trigger would not reset after each pull and was stuck in place after each round. Had to force safety to safe position then back to fire to get trigger to reset. Happening about every 6 rounds. Pulled lower off and noticed this piece of metal sitting near rear take down pin. It looks like spring leg piece but upon inspection both hammer and trigger springs are intact and seem fine. Non curved portion does look broken/sheared off.

I’ve done a once over and checked everything racking my simple brain as to what it could be. Even consulted trusty old rifle blown out parts diagram. I can’t for the life of me figure out what this could be. It is still having same issue as described. Any thoughts?