Running the AR at the range a while back, started having tigger issues noticed my pins had creeped out a little. Pushed back in and was back in business. Found a sweet little set on eBay for $8 shipped and they work great, nothing fancy or flashy just a little hex screw in each end. My question is most ar's you see do not have them, and they do not come in a standard LPK. I'm just curious why one would decide to not use them and go for the standard pins. You lose a pin and it'll shut you down. Maybe mil-spec tiggers hold them tighter and it's less of an issue. I don't know I've always ran nice triggers from day one.