Well...I haven't settled on the upper yet.

Buying a lower stripped and lower kit as trigger assemblies seem pretty straight forward but buying a complete upper because I don't have to worry about headspacing that way...that does worry me if I tried pairing a barrel with a stripped I upper on my own.

I have decided on a flat top because I want to put optics with reticle crosshairs and flip up buis on it and don't want the A2 front post in the way.

But...can buy a brand new PSA complete upper with BCG and charging handle for under 3 bills from a guy who bought a couple a few weeks ago on one of their daily specials. Flat top is going to run $450.

Don't know if I want to save $150 and have to punch the A2 off the front and put a rail gas block on my first build. It pretty straight forward but is one more project I don't know if I want to mess with.

Should decide this weekend and start after that.