As a parts manufacturer and distributor for 30 years, we strive to give you the best service and products we can. Our weapons kits for the AR15 are all U.S. Made to government Military specifications. Barrels, upper receivers, bolt carriers, lower parts kits Etc. all manufactured by U.S. military contractors. No foreign parts are used in our kits. This includes not only carbines and rifles, but the AR15 pistol kits as well. Upper assemblies are properly head spaced and test fired. 2012 is our 30th anniversary serving your AR15 needs. We are here for you offering technical help and advice for you when you need it. So if you do have a problem with any of our products just pick up the phone or e-mail us for help. We will help you the best we can and stand 100% behind all our products.