I was in a gunstore this evening, local to northern VA, and saw a Colt "M4 Carbine" marked with an SP serial number that came from the factory with a quad rail marked "Colt Defense". It was obviously NOT the 6940 and looked like a 6920 with either a Surefire or KAC rail possibly? The delta ring was still on the rifle and there was a gap in between the receiver top rail and the forearm top rail. From looking at their website it looked like the rail on their 9mm subgun located on this page.
http://www.colt.com/ColtLawEnforceme...ineGunSMG.aspx
So anyone know what this is for sure? I think the gunstore just got it in today or yesterday. I'm going back tomorrow and hope to take a pic.
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