A coworker and I both went to Curt's to buy some ARs. At the time they were going for $600. They are great guns but have some issues. My coworker came to work one day and told me how his gas block came loose after putting 20rds through, at that time I had already put 100 through mine. Just last Sunday I went shooting and had the same thing happen to me! Easy fix just tighten the 2 set screws but that shouldnt be happening. My good friend bought his at the gun show as well as his brother from Curt. The first time I put any rounds through mine his buffer detent popped out while cycling and jammed the bolt carrier. After getting that taken care of we continued to put some rounds down range. After shooting last Sunday and fixing my gas block I noticed that my buffer tube rotated back and forth about a 1/8". Has anyone experienced any of these issues with Curts guns? Maybe something different? Im not trying to talk bad about curt or his product and I know that "you get what you pay for" but I feel that these things shouldnt have happened. I havent had the chance to call curt and I will tomorrow just to let him know some of the things that have happened and hopefully he can prevent them from happening. im a tad upset but more concerned with what can happen next. i thought about taking it back to curt but i will just go through it my self to try and find any thing that can go wrong.