I don't know if there is such a thing, but my question for the forum is..... Is it plausible to have a semi-custom plinker 5.56 for a budget build? I was going to just buy a PSA rifle kit, but decided, is it possible to shop around and get something a little upgraded? I already have a lower, so here would be the list of needs....

budget: $550ish
Wants: Nickel Boron BCG or equivalent, Stainless barrel, low-profile gas block,
Optional if budget allows: BCM gunfighter Charging handle or something similar
later on down the road add-ons - bitchen looking flash suppressor (subjective I know, sorry).

Thanks.