Hi Geraldo and welcome. The actual reason is number of each in stock. Buds' prices are tied to stock level and higher stock same or similar models will be priced lower that lower stock same or similar models and vice versa. Cheers, stay safe and enjoy!

Just a plain model without all the extras and no case.

Good evening to you!! The price difference between the Smith & Wesson Response 9mm 23rd LE is that one is an Law Enforcement model and is on clearance. One has a case and the other is just a plane jane Smith & Wesson Response 9mm. Hope this helps. Have a good night.