I have an 14.5" KAC Mod 2 upper with approx. 150 rnds through. Comes with everything it came with EXCEPT the charging handle is a Radian Raptor SD.
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I can remember eating donuts covered in ketchup once, being young and broke is so much fun. Actually the young part was pretty good, the broke not so...
For CQB use, if you want the benefit of a constant brightness setting of a red dot and occluded is a good solution for you, just zero with the sight...