Hi all, I think this is my first post in the EBR forum, as my only other centerfire rifle is an AK. Anyway, I'm about to start an AR build. I've got a Spikes stripped lower on it's way to me ($67 shipped as part of a local group buy, plus $25 transfer). My plan is to build the lower, which doesn't seem TOO hard, and then add an upper, most likely a BCM middy. Two questions: 1. What tools are must have for building the lower? I have an assortment of punches, pliers, little brass/plastic hammer, etc. What AR specific tools would someone recommend (I know I need something for the ring where the rear tube attaches to the receiver, and I've also heard a handguard tool is handy? Combo tools? Any recommendations welcome.) 2. Is there a particular type of buffer tube assembly I should be looking for (I'd like to run milspec rather than commercial). Certain strength of spring, etc., for the mid-length? Again, any advice appreciated. No doubt I'll have other questions in the weeks and months that follow, but I want to get my first order in for parts (LPK, buffer tube assembly, and tools) all at once to save on shipping (probably Palmetto). Thanks!