unless its being given to you for free pass on it.
none of the commercial non gi m1 carbine clones are any good. some may shoot and cycle good but its a total crapshoot and the odds arent in your favor at all. gi parts dont fit them so your sol on spares if something breaks.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...