I just purchased my first AR15. It's a Del-Ton DTI15. I honestly don't know much about AR15's, especially when it comes to things like M4/203 barrels or direct gas impingement. Wondering if anyone can take a look at the link and let me know what your opinion on it is. Mine is a bit different than the one pictured. I've got a flat top with picatinny rail, and a quad rail picatinny handguard. Other than that, identical.
http://www.gunsandammo.com/reviews/del-ton-dti-15-review/
http://www.gunsandammo.com/reviews/del-ton-dti-15-review/