AR-15s

@DodgeLad Not sure if that 6920 came with a flip up back up iron sight (or the old carry handle rear sight) but if not you need to get one at minimum to make it useable. Even better would be to get the flip up sight and a red dot optic. I think you made a great choice with the Colt. I used a Colt M16/M4 with the U.S. Army for two years in the sandbox, and a Colt 6940 for 12 years as a cop. Only retired it because I switched to an HK416D.