The first thing I do is put a freefloat tube on it and then glass! I've built 2 of my own AR-10 DPMS pattern rifles on 80% Hellfire lowers and uppers and also helped my friend build one with the same lower and upper. I had issues with accuracy on my first one and finally figured out that gas pressure is everything when it comes to accuracy! I didn't put an adjustable gas block on mine and my friend did. Long story short, shot 1/2 " groups with his 1 1/2" with mine! Put adj gas block on mine and tuned it in and shot.300" group at 100yds. and consistently hits at 1000yds on 12x18" steel plate weather permitting! I bought a 6-25x 56mm ADE advanced optics scope off of amazon for $209.00 same scope as my Millet but 300 cheaper must come from the same factory because it is I identical without the millet logo. Friend bought one for his and now has it on his 50cal. awesome scope for the money no issues at all and I've had it for 6 months with about 500 + rds on it. I'm shooting Hornady 168 hpbt 44 grs of varget ,mil brass, and win mag primer. Getting right at 2589- 2600fps on the chronograph. Hope that helps!
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