thanks

Have you tried the trigger on an HK rifle?

I can't speak for BM, but most AR come from factory with triggers that leave a lot to be desired of.

Hence the pletora of aftermarket triggers.

They'll probably replace it with another standard trigger.

I have touched off a fair number of AR triggers, and some are heavier than others. Worst one was by far on a Sendra I tied. I swear, you;d think the safety was on... But 12lbs sounds like a little much. Around 8lbs is a little more common. I have felt standard stock triggers down to about 5lbs, but never any/much lighter than that really. If you have a problem with a heavy trigger, and I dont blame you at all, the one Bushmaster will likely replace it with probably wont excite you either. Consider upgrading to a Accuracy Speaks trigger. At the very least, you could probably get one of JP Enterprises yellow trigger springs. That will probably lighten things up quite noticably.