I just got another AR (Colt 6920) So Im trying to figure out how I want to set it up. I was thinking about going semi-old school and going with the SIR sytem. I wanted one a while back when it first came out and I couldnt afford to get the cool stuff. I have a MI rail system on it that I had laying around but it looks like the rest of my AR's. Everybody I talk to at the shop I work at says its out dated and that I should not get one. My other rifles I have are wearing surefire, MI, and troy rail sytems.`Should I go for the SIR or is it a bad choice? If you have pics show them off to get me to order one.:D

