Springfield name means quality parts and carefully inspected. This is not thrown together from some random AR Lego parts. This is a Springfield Saint Pistol Complete Upper with 7.5" barrel in 5.56/.223. You can look up the specs at Springfield website. It has less than 300 round through it. Bolt Carrier Group and Charging Handle are included. This is an uppers receiver only and does NOT need to go through FFL. Email is the best way to contact me. I am at airgun 101 at google mail dot commercial. (No space). $650. Meet near north Colorado Springs. Contact me to make arrangements. I will ship for free if you pay by paypal.