My dad purchased the Colt M4 .22 a month or two ago. A coworker of his had one and really liked it, so my dad bought one. Ultimately, I'm sure my dad would love to have a real AR, but they cost a lot more and .22 ammo is much cheaper. I shot my dad's Colt, and it seems just fine to me. I've heard criticism of both the Colt and S&W rifles. One of the pluses of the Colt is that it is actually made of metal, so it feels more solid than plastic. I'm not a fan of the outsourcing by Colt, but the gun seems fine to me. I don't quite get the "it's an airsoft gun that shoots .22's" comments, but being made of metal seems to pull away from airsoft more than plastic does. Just my opinion.