Originally Posted by ctshooter
Size. Full size, compact (mid size) sub compact. The xds is only 1" wide at its widest point
actually that's not quite right.
The xd comes in full size (Springfield calls it tactical model) compact ( aka service model) and sub compact.
The XDM comes in the same sizes. The difference is the M of corse. The m stands for match. The gun comes with a match grade trigger and barrel. It also looks way cooler. They come with fiber optic sights instead of the white 3 dot. It also comes with 3 mags instead of 2. Also has replaceable back straps which the xd dose not. It is the upgraded version of the regular xd. Much like the gen 3&4 glocks
The XDs is the newest line developed specifically for CC. The XDs .45 is the smallest 45 made today.