This is my third time dealing with them. The only bad thing I've got to say about them is whatever date your e-mailed through the tracking system they have is you better add 2 days to delivery.USPS delivery only right now. Prices on ar parts are equal to or less than del-ton. Over all they saved me about $125 on my last build. When some of there completed pieces cost less than some stripped pieces I have bought in the past. I have e-mailed them and asked them to think about becoming a sponsor to this site. If you do order from them tell them you heard about them from ar15.com in an e-mail