Our website updates every 20 minutes, 24/7, with our current inventory and replacement cost. We do not price our guns manually based on our cost in each, rather we use a live download from manufacturers and distributors to set our price based on our current replacement cost. As our cost changes, the corresponding website price of each make/model will change up/down accordingly. Although our profit margin remains unchanged, our advertised prices will change frequently, sometimes several times per day.

Jeffrey, this will depend almost exclusively on stock level. Once certain firearms reach critically low stock, usually the ore popular ones, prices can rise steeply until they are restocked. Buds updates their website's inventory every 20mins and this happens frequently.