[1] Established in 1999, GunBroker.com is one of the world's largest online marketplace for firearms.

[2] GunBroker.com was founded by Steven F. Urvan after eBay started restricting gun sales.

[6] Fred Wagenhals is Chairman of GunBroker.com via AMMO, Inc.[7][8][9] GunBroker.com has sometimes been used to study trends in firearm sales.

[10] In 2023, Steven Urvan sued Ammo, Inc claiming it duped him into selling GunBroker.com for $240 million in exchange for 17% stake in the company.

Several lawmakers called out to the Olympics to cut ties with GunBroker.com because of Nazi memorabilia listed for sale on GunBroker.com.