If you have any questions about homemade reciever builds, please don't hesitate to ask me questions. I have 6 under my belt now, and even though it is a lot of work compared to buying a completed receiver, a flat or a blank, you have the satisfaction of knowing that ," I made this". It may not look authentic but so what. The dimples in the recievers are nice and functional but I have come up with homemade rails that accomplish the same purpose, are screwed from the inside and can not be seen on the outside. They extend down to the bottom of the magwell and provide the side to side support just like the dimples do. They are nothing like A&D's and I think they cost me about 1 dollar to make. The reason I can get away with this is because of the thicker metal on my recievers I am using. I am glad to see that you are going to take the plunge and make a reciever from scratch. Just like homemade bread. A little more work, but OH SO good. ak'sr4me