pointless AND your stuck with a crappy boat anchor handguard...
just push the two take down pins and the ar15 comes apart in two pieces. you can use any handguard you wish with any upper or any barrel.
i can swap my bcm 556 to a 458 socom in about 4 seconds using two takedown pins.
170$ for this silly handguard and lockring. you can buy a non-barreled upper for less.
dolos is an apt name as its the greek god of trickery and deception and thats exactly whats happening to you if you buy one...
"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...
"I crapped my pants to avoid the draft!!" -Ted Nugent