Emmet's is a small gun operation run by Emmet.
General
Emmet's gun shop is located in Willow Field, just south of Ganton. During the mission Nines and AKs, Carl Johnson and Big Smoke go to a Seville Boulevard-aligned small arms merchant named Emmet, to acquire of some firepower. After completing the short mission, a 9MM pistol is spawned at the location. Later during Carl's time in Los Santos after his return, he can use this location as a prime way to clear out the Ballas located in the neighborhood, as it is a small space that provides an easy way to kill enemies in a short amount of time.