[doofus47]

I went with a CavArms A2 lower and a vietnam surplus no-bump A1 upper with FA. Looks like it was rubbed down with a cheese grater, but works fine.

I traded an old rifle for a bunch of Colt-made upper internals and a 20" chrome-lined surplus barrel.
I put a modern bird cage flash hider on it initially b/c that's what I had at the time, but I liked it, so I'm leaving it on.
The barrel is 1/12" so I'm locked into 55 gr ammo.
I don't know if they still have them, but Numrich had some grey 20 rnd aluminum magazines that made the look complete.

Great rifle. Easy to shoot.