I've become a big believer in the XS Std Dot front sight on defensive revolvers. Started with an M&P340, then put same front sight on M60-9 which is my snubby range worker. Now I've picked up a 396-NG which also has the C&S combat U-notched rear sight. Sight picture aquisition under diversely varied lighting is so fast with the XS dot + U-notch set-up.

Which brings me to my ponderance and question: I snagged a 325-TR a while ago at a steal price which I thought I'd keep stashed at the house. Great shooter with .45ACP (my favorite since my primary carry is a 1911) and it allows ready attachment of a TLR-1 light for 0-dark:30 situations.
Has anyone modified the regular square-notch blade of a S&W adjustable rear sight to a U-notch, particularly for use with XS' great Std Dot front sight? I know I could swap in the C&S combat rear but it'd be beneficial to keep the OEM adjustabilty.

__________________
GDubya
جنوب كافر فخور

I just got my M&P340 with the XS standard dot front and U rear, and like you, I think its a great set up. I had the XS Big Dot before with a square rear notch and just could never figure out the right hold/POA for the front sight. I'm taking my 640-1 and 340SC to a local machine shop that specializes in guns and refinishing after the first of the year to see if they can machine the rear sight notch on both into the deeper U shape of the M&P so I can put the XS standard dot front on both of them. I would think you could probably have a rear sight blade easily (perhaps even at home with the dreaded Dremel) machined to the U shape.