I like the Comp M4 very much. It has a 2MOA dot, and I can hit pretty easily out to 400 meters with it.
The only negative, although not a huge issue, is that the spacer on the mount makes getting a good stock to cheek weld a bit difficult. The sight should have been a bit lower. But like I said, not a huge issue.
It is a Schmidt & Bender Short Dot on a LaRue Tactical LT-104 (if I remember correctly). I sold it off after I got back due to the restrictions on non-issued gear.
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