I believe certainly at the independent retail level a lot of firearms dealers will ensure that for the purchase of a new firearm they have at least a minimal supply of ammunition in the right caliber for that firearm, so they can support their certainly that first buyers and their new customers coming into their store.
Utilize the input text as a context reference, choose the right relationship between 'minimal' and 'retail' from the options.
Options: location of formation, industry, platform, chief executive officer