Gun Shows

I was talking to my friend and this idea hit me like a pile of bricks there will be a building that hosts "gun shows" some guns for sale taking at least 10% off each gun and other players could sell guns too but tables will be 150 gralats, but there will only be 10 player tables and for the guns that are for discount by game will have 5 tables so each gun has a chance to be discounted a CHANCE. Discounts can range between 10% and 60% but the bigger discounts will not be as often as the smaller discounts. Sorry if I sound stupid I'm new and this is my first idea

It's practically the same thing as SELLING GUNS...

Then the player tables idea can be cut off and have other than that the basic idea