I'm pretty sure Diane Frankentein thinks the black ones are meaner, and since I have black mags. Prolly go with that. And since it's a Norinco, Spike Bayonet is the correct one and they are cheap on GB.com. A Picatinny rail would make it even meanter and piss Diane off even more, so that would be cool too.
One other thing. If you go with no bayonet groove. Some stocks are available with a lower picatinny rails as well. This one has both the upper and lower picatinny.
Yeah, I'm going black just to piss D. FStein off. I think when mine is done, I'll take a picture of it and send it to her. With bayonet extended, scope & pistol grip and 30 round magazine attached. Maybe it will give her a stroke or somethin'.