The man behind the Supreme Court case clearing the way for civilian gun ownership in Washington, D.C., dropped by an Army weapons display outside the Rayburn House Office Building shooting range Thursday afternoon.

In 2008, Dick Heller’s case won in District of Columbia v. Heller. On Thursday, he shot the breeze with a handful of G.I. Joes in the basement of Rayburn.

Representing a U.S. Army prototyping organization known as Program Executive Office Soldier, the soldiers had set up a weaponry display for the purpose of educating and informing congressional staffers and their bosses, they said.

PEO Soldier is dedicated to prototyping, making and fielding equipment for the U.S. Army. “PEO Soldier manages more than 450 products and programs that are a manifestation of that dedication,” according to the agency’s website.

Nearby, the Rayburn firearms range operated by the Capitol Police was open for the day to members and staff. Visitors were allowed to shoot 10 rounds, five while wearing night-vision goggles. Afterward, they rode the elevator carrying target sheets bearing shot groups that were, shall we say, less than tight.

“What a surprise,” Heller said after leaving the basement. “There were 12 women and seven guys. That shows you the interest level of women in exploring this man’s world and/or exploring self-defense.”