I'm going to bring this back up because I have another question -

I'm looking at stocks/buffer combos for this set up and I'm wondering what I need if I go with the mid-length gas system. I prefer the solid A2 style stocks, but I have no idea what I need for a buffer/spring if I go with the A2. Will the standard A2 like RRA sells work well with the mid-length?

RRA

They say everything happens for a reason.
For me that reason is usually because I've made some bad decisions that I need to pay for.