ABU DHABI, United Arab Emirates — Serbia showed off armored vehicles, rockets and rifles, and drew in passers-by with a video showing soldiers shooting targets to action movie music.

Pakistan had glass cases full of bullets, mortars, grenades and guns, including a gold-plated AK-47.

And Sudan displayed an antiaircraft missile and its launcher. A salesman in a white robe and snakeskin shoes pointed out that it was an upgraded model.

“Now they have a wider area of explosion,” he said proudly.

Such casual sales pitches for lethal merchandise coursed through the carpeted halls of this wealthy Arab city’s convention center this week, when more than 1,200 military technology companies and contractors from around the world convened to hawk their wares.