If you were gonna run a full auto hard i would get one. But a chromed bcg like the rra ones do just fine for semi auto hard use. There is no such animal as self lunricating bcg. Gun parts dont create lubricant out of thin air
"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...