Twelve members of rap superstar 50 Cent's (search) G-Unit (search) posse — including top hip-hop performers Lloyd Banks (search) and Young Buck (search) — were arraigned on weapons charges Tuesday after cops stopped their van and found two loaded guns.

The van had just left New York City's Madison Square Garden following a sold-out concert by "Fitty" and Eminem when it was pulled over for running a red light at 11:45 p.m. Monday.

"They were all acting a little antsy, so officers made them get out of the vehicle and they found the weapons — both loaded," a police source said.

All 12 were charged with criminal possession of a weapon, punishable by up to seven years behind bars.

One of the weapons was discovered under the seat of G-Unit security guard Paul McFarlane, 29, and the second was being carried by another security guard, Stephen Roker, 29, police said.

McFarlane, who later told cops he owned the weapon under his seat, was released on $5,000 bail and Roker on $10,000 bail.

Authorities said both guns were registered in other states, but not in New York.

Of the 10 other men, three are performers: Christopher Lloyde, 23, a childhood friend of 50 Cent who performs as Lloyd Banks; David Brown, 24, who raps as Young Buck; and Curtis Williams, 29, whose stage name is Spider Loc.

Wildly successful Banks sometimes performs in a bulletproof vest; Young Buck is a former crack dealer who has pleaded not guilty to knifing a man at the Vibe Awards (search) in Santa Monica last November; and Spider Loc is a former Crips gang member.

Also busted were Clinton Skinner, 41, Eugene Cedric, 26, Horace Fowler, 22, Terrence LaJuan, 29, Terry Biles, 35, Ronald Knight, 20, and Dante Reed, 27.

And Daryl Lighty, 37, was arrested for obstructing governmental administration when he tried to interfere with cops who had stopped the van.

A swarm of fans greeted the posse as they left Manhattan Criminal Court Tuesday, including one gushing female court officer who beamed at Lloyd, yelling: "Remember, Lloyd, get a [gun] license in every state!"

Lloyd then took off his shirt to reveal a wife-beater undershirt — his bulging muscles adorned with tattoos — as the fans went wild.

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