Thank you for your inquiry. We appreciate your feedback and will be sure to have the webmaster update the image for that item asap. However, when selected all of our products have detailed descriptions of exactly what you are going to get if read (the quick adjust knob is an upgrade and not a standard option for Quickships b/c of their cost). We encourage customers to contact us if they have any concerns about their holster (i.e. - your mag release concern) and not to modify the holster as it voids the warranty. We will do everything we can to accommodate and/or correct any concerns when we are aware of them. Lastly, the retention screws (which are the screws I believe you are referring to when you say the screws towards the bottom?) are not supposed to be removed unless replaced by Quick Adjust Knobs. If you are referring to the screws that hold the DOTS attachment, those screws are assembled with semi-permanent glue so that after continued wear and tear, the hardware does not come loose and fall out. We have methods to help remove the glued hardware (without damaging the holster or attachments) when a customers contact us for assistance. We would be happy to share with you (if needed), just send an email to sales@candgarms.com. I hope that helps clarify a few things and thank you for your business!