What do you use for a truck gun?

I have my EDC with me all the time. wanting to build a truck gun, just havent had the time.
EDC as well, and I built my "truck" gun (and loaner when we go out with others) over the past 6-10 months. I had an Anderson lower I bought back in '16 that never got used. I got a mostly-complete upper for less than $120, picked up a BCG & charging handle, and a scrounged the 'net for the rest. Less than $400 in *this* economy.

Need to work out a storage solution and get a sling for it.