quite a few mods hunt with AR's, including some suppressed. I've long had a Colt NM Target I call with, but it's not a flat top, it's heavy & I wanted a calling rifle. After shooting one of these I decided that's what I wanted but put it on hold.
Then Sandy Hook happened & the gun grabbers went nuts, so I figured I didn't have to be in a hurry but I did need to stop farting around & start moving on it, even if slowly.
It's my first custom, but I doubt it will be the last.