The Ruger P89 is for sale every day at Gunandarmory.com You can buy this popular pistol model made by Ruger through one of the many sellers listing their products here at GunBroker.com, the world’s largest gun auction site. Ruger has a rich tradition of creating quality handguns and the Ruger P89 is no exception. Sellers update their listings frequently, so if you’re looking to buy a Ruger P89 or part check back often.