Hope you get a good answer, when I took mines apart after purchase, I recalled that mines had a longer screw but no spring with it. Which finish did you get the blue or satin. Seems like the satin finish models tend to have problems with grittiness on the trigger pull. I have the blued version, however my mini currently at taurus now, having the rear site fixed. Hope to get it back soon. Cant wait since my crimson trace laser arrived two days after it was sent off to taurus.