I wanted to give a huge kudos to Valley Armory in Palmer. They carry everything you need for ar-15's and more. They have their own VA stripped lowers which are very nice. They will also engrave them for you! They also now carry a polymer complete lower for $99! James at VA goes out of his way to help you and shipping is only $5 anywhere, and my stuff always arrives in 2 days. Check them out valleyarmory.com. I am in no way at all affiliated with them, just a very satisfied and happy customer!