"LOL, you guys crack me up, just as bad as the Colt fanboy's. It's a .22 for crying out loud. I bought it as an accessory to shoot shoot some inexpensive ammo (relatively speaking) in my backyard. It cost me $357 including shipping from Cope's. It uses the BD style mags which I don't think (correct me if I'm wrong) the S&W or SIG use. So far in a different lower it has been extremely reliable, and I see the same problems on the forums with Spikes or the TAC Sol upper. I'm not real concerned that it has a polymer upper, again, its a .22 and it looks fine. Fit and finish is great for its intended purpose. About the only change I'm going to make it to ditch the front site and put on a cheap gas block instead so I don't have to see the sight when I'm looking through the red dot. "
I think we are doing just what readers want, that is evaluating the options so that a perspective buyer can make an informed decision. Isn't that the point of discussion?
Case in point: You just wanted something to run some .22 ammo through so the lower priced ATI unit was fine for that purpose. For others they want certain features or the ability to make changes down the road. For some they appreciate finely made firearms and a bit more money is OK with them.
So, this discussion is for those who don't know but want to compare without buying all the possible units out there. If I recall I made a comment about the ATI being fine for the price. After 50 years of shooting and gun ownership I appreciate the finely made Tac Sol and will pay extra for that. That's me, others will make their own decisions. But, it should be their decision based on their wants. I don't recall anyone here saying one was "better" than the other. The Tac Sol and the Spikes are not cheap! Some would even consider them over-priced. Its up to the buyer what they want from the unit and how much they are willing to spend.
Its great to be an American!