Re: AR10 trigger
If you are wanting to put an AR-15 style trigger in a AR-10 platform and you know the Pin diameter of your lower. If you have a DPMS .308 or 5.56 than you have a .154 diameter pin. I would look at Midway USA. They have all sorts of triggers both two-stage and single stage, and if you want adjustable, or not, and reviews on them. Look into Brownells as well. A couple of things you have to watch out for is the timing, and hammer spring strength to punch hard primers. Also understand that the .308 is a much heavier BCG with more force, so you need to make sure it can hold up to the beating. If you click on my post you will see a bunch of the Hide Members have allready helped me out a ton with this question, and it may help you with yours. Also septic-tank13 did one heck of a nice write up on this question.
One trigger I have been trying to read up on is the new Wilson Tactical TTU single stage. I am looking at it for my DPMS .308