The Costa HOST pistol is ready for use straight from the box, featuring a Vortex Viper red-dot optic mounted to the slide. The gun also incorporates extra-high tritium-illuminated sights that allow users to see the irons through the optic window. The gun is also threaded for suppression, and the sights allow for clearance over the profile of a suppressor.
The Costa HOST pistol is built on the STI 2011 platform, which features a double-stack magazine and increased capacity while retaining the look and feel of the 1911 platform. According to the company, the 2011 design also works to reduce recoil through a better transfer of recoil along a flatter plane, providing shooters with increased control and the ability to fire faster follow-up shots.
The exterior of the gun features a unique TreeBark stippled grip that features a tan finish, along with a slim tactical magwell for smoother and faster reloading. The metal parts on the gun are finished with the company's Diamond-Like Carbon finish, which is designed to ensure durability against wear, tear and environmental stresses.
Other features of the gun include a 4.15-inch bull barrel which features a threaded muzzle that is sized to work with most aftermarket suppressors, along with an included thread protector. The Costa HOST pistol is also equipped with a Picatinny frame rail for accessory attachment, as well as STI's proprietary Recoil Master spring system.
The HOST pistol is available in 9 mm and .45 ACP. The guns ship with two magazines, one flush-fit and one extended magazine. In 9 mm, the flush-fit magazine holds 18 rounds, while the extended magazine holds 21. In .45 ACP, the flush-fit magazine holds 11 rounds, and the extended magazine holds 13.
The suggested retail price for the STI Costa HOST pistol is $3,499.