chip mackormic will work, it is what I used, i would suggest a rock river 2 stage, much better and cheeper
I am using a Jewel 2 stage in mine. Seems to be working well so far. Someone else on the site is using a Jewell 2 stage with great results in his LR-308 and has a lot more rounds thru his than I currently have. $175 Bruno Shooters Supply.
The stock trigger is a single stage AR15 trigger with at least 8 lbs of pull.
I have a RRA two stage in mine and it works great.
Smooth and clean, no creep.
The LR 308 will take any AR-15 trigger except maybe the Jard. The Jard I had was too long and hit the trigger guard. For my two stage AR triggers I only use the RRA. Reasonably priced, reliable, and reasonably priced.
It has worked well in my LR 308.
DPMS has this warning on their website on the .308LR splash screen with specs.
I almost bought one myself before I read that.
I have the RRA two stage..