1st BUILD and going slowly as the wallet allows! LESSON #1 If you are not satisfied with your new OVERSIZED MAG DROP BUTTON do not install your bolt catch. I just had to put it together so I could see how my BAD LEVER fitted, not to mention looked....I just had to, I know you all understand. When I decided that, well, I think I should remove the oversized mag button that did not have a deep enough throat.......I decided to keep it do to the fact that it cannot be removed without uninstalling the bolt catch. The mag button is in the well but not as far as I would have liked....functional but not perfect. Lesson #2 I completed the entire assembly on the SPIKES lower ALL BY MYSELF with only a few small punches, tape, hammer, block of wood, box cutter and needle nose pliers in about an hour. Trigger assembly, trigger guard,...etc not a problem and NO SCRATCHES to the receiver. The only thing left was the buffer spring and buffer. I was awash in glee!.....and then I came up with the wonderful idea to see how it functioned with the upper from my complete ar that I had previously purchased. It fit great and I was quite proud until I decided to pull the charging handle back and stick the bolt into the receiver extension tube with no spring in it. Bonehead move which required the removal of the extension tube and subsequent launch of the take down spring and detent! I found it though! Lesson #3 Put it together completely, with all parts. If anyone as dumb as me can complete a lower, ANYONE can build an AR. My friend has the vice block/wrenches and I am eagerly awaiting to go full bore on the upper. Stay tuned for more "People do the stupidest things when building AR's".