Hi James, Buds uses an automatic inventory price update engine that runs every 20mins. Prices are tied directly to stock levels and will change as stock numbers change. As inventory numbers go down, prices go up and vice-versa. Usually when popular items get low in stock.

There are a lot of differences the ultras have fiber front sights and G10 grips the standards have black adjustable sights and black plastic grips some have rails some are double stack and some single stack tell me which ones you want to know about and I will be able to give you a better answer. I have 2 22tc/9mm so I know the differences go to the link and look at the differences on each model http://armscor.com/firearms/ria/tcm-series/

follow up go to the link and look at the differences on each model http://armscor.com/firearms/ria/tcm-series/

There are a lot of differences the ultras have fiber front sights and G10 grips the standards have black adjustable sights and black plastic grips some have rails some are double stack and some single stack tell me which ones you want to know about and I will be able to give you a better answer. I have 2 22tc/9mm so I know the differences

James, this is simply a "Stock Number" situation. Buds runs an inventory engine that updates every 20mins 24/7. As stock levels go down, prices go up and vice versa. It's the reason I buy at the height of stock #'s to save money.