It's been a long time..
Over the years I've put together a bunch of ARs..
I've settled down..
These days.. about the only rifle I shoot is an old Bushmaster A2 20" 1/7 barrel.
I put a collapsible six position M-4 carbine stock on it.
With a Tubbs flat wire spring,and an H2 buffer.
She's buttery smooth. And sooo soft shooting.
It's great.
Liked it so much.. I thought?
Let's do the same thing with the A4 and a DD BUIS
But I still enjoy the A2 more.