I have several boxes of good ammo; was just burning thru some steel cased shells that wouldn't run in my son's DPMS. The Sport ll didn't complain at all.
Trigger next then a scope; probably a 2-7 power tactical size, don't want/need a lot of size or magnification. Thanks for your input.
If/when I get into long distance, I'll probably build my next AR 15 w/ a 20" barrel. No place to shoot in the local area over 100 yds.