The A2 Flash Suppressor

Yes, it is indeed good enough to get the job done.

Reason #4: It is nearly free (kind of)! No one buys an A2 flash suppressor. They come installed already on a complete upper receiver group or complete AR-15 or you bum one off a buddy who just spent his allowance on a new muzzle device. Even if you did buy one, it wouldn’t cost much at all.