I have the JP single stage on an AR-10 and like it very much. Very crisp and no creep. Not sure how much you can take these down but I'm guessing mine is around 2 1/2 lbs. Mine was installed by DPMS. Good luck.
I know you are looking for a single stage but the only way you can have a reliable no doubling light pull is with a two stage. I have two of the Jewell triggers with the first stage set at 2 lbs second at 3 oz. Once you get used to the first stage take up and the crisp second stage release it is very nice. They are not hard to install if you follow the instructions. The second stage fully adjustable with an allen wrench from the top. First stage spring adjustment wheel from the top with a hooked tool or needle nose. The Jewell trigger does not wear down with use.
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