My thoughts are I am thinking the exact same thing for the exact same reasons.
I am trimming myself back to really only one example of something, so not like I would have ten guns I would want to juggle a single can around onto.
I really do not want the extra hoops and restrictions and second permission slip for an SBR. I know some people live in the center of a large state and do not cross state lines with one so often, but I am in SW Ohio, only about 40min from Indiana and only about 60min from Kentucky, and there are shooting opportunities in both of those states. I am also not really all that much in love with SBRs, especially in 5.56, and the only reason I would want one would be to not have a heavy can hanging off my carbine in a neighboring zip code.
I think Daniel Defense is making one also, and there are several 10-22 options.
I agree, except for the forever part. I would not expect to be removing it unless there was something wrong with the barrel, and if you are not worried about the barrel the pins can be drilled out with a simple drill press and be ready to be pinned to the next barrel, or swapped over to an SBR if you ever changed your mind in the future.
I am thinking if I do it my 300BO would probably be the candidate, the most coolest and most useful. I could buy the thing, and while it sits in jail I could shop around for the short barrel, and then get things all assembled on the upper and test it out adequately on my legit pistol lower before I go off and get things welded up.
So yeah, I have kinda thought about it...