The owners of Artillery A.G. discuss how online purchasing is affecting small businesses in San Francisco’s Mission District. This part of an occasional series –  Shop Local Disrupted –  that will look at how local retail is being upended by an ongoing transformation of the country’s retail economy.  On Thursday, the owners of Artillery will unveil a new look that offers fewer designers in an attempt to highlight the best of the Bay Area. Stop by and visit at 2751 Mission St.