I just bought a ar15 bushmaster lower receiver and am looking for suggestions on what type of upper receiver and optics to have a long range X masher. My lower receiver is a model # XM15-e2s
What I use on my tack driver is our 24" bull upper with a Kahles KZF-96 (I think that's the one, 3-12 x 56 with the target knobs). I consistantly get sub .5" 5 rd. groups @ 100 yds.