The National Rifle Association mocked gun control activist David Hogg for apparently showing up to a protest at the NRA headquarters in Fairfax, Va., this weekend with “armed security.”

“Today, @davidhogg111 (with armed security) and a bunch of gun-grabbing activists protested our empty HQ, and there were some interesting people there. Our social team chatted up the crowd and ended the day with ice cream paid for by @Everytown! Stay tuned for video interviews!” the NRA’s official Twitter account said on Saturday along with some photos. Everytown for Gun Safety is a nonprofit gun-control group.