co-witness comp m4 on colt 6920 (front sight)

[pcardinal42]

I got my compm4 a few months ago with an absolute co-witness mount, I didn't have any problems viewing the dot and the front site was never in my way but I had shot an m4 before with a lower 1/3 co-witness and preferred it better. Find someone or a couple of people with both and just see for yourself.

[TOM1911]

Thanks for the heads up. I might have to find a shop that has one in stock and see a setup.

Is it a bad idea to remove the front sight and put on a gas block / flip up? From my novice understanding, it seems as if these rifles are "factory tuned" and I wouldn't want to take apart the upper, but rather buy another upper.

I run an M4s with the spacer on a Bobro throw lever mount. The barrel is a Daniel Defense 14.5 covered by a DD Mk18 RIS II and the system works well as a lower third cowitness along with the Troy flip-up sights. Strong optic with a set of strong BUIS..