From what I recall, all of the SAWs we went down range with had either an ACOG or a CQO on them. My experience with them is limited to basic qualification, ~500 rounds, which was a blast, but other than that, all I can say is that the shortened "paratrooper" variant is about useless past ~175 meters.
"Growing up as both a Southern and the son of a child of the '50s, I was imprinted with several things that have long stuck with me. The F-86 Saber Jet was the finest fighter ever flown, the National League is always superior, and Leslie Coffelt
was the finest revovler shooter since Mr. Ed."