This is a discussion on Best Sub-Compact .45 for Concealed Carry within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; Springfield XDS or CW45....
I really like my Glock 30, but if I had to do it all over again--I'd really like my Glock 36. If having fewer rounds were an issue (and it's not) carrying an extra mag would make a nice counterbalance.
So sayeth the OldVet
Retired USAF E-8. Lighten up and enjoy life because:
Paranoia strikes deep, into your life it will creep. It starts when you're always afraid... Buffalo Springfield - For What It's Worth
Since you're already familiar w/ Kahr, I'd get either one of Kahr's 45's. I bought a CW45 some months back and have been very pleased. I didn't see a need to spend the extra money for the PM45 or P45 for what is primarily minor enhancements that don't appreciably effect the gun's function. My CW45 has been a pleasure to carry w/ a Side Guard Holsters "Tuck Clip." It's gobbled everything I've fed it, except for some lead bullet handloads. The Glocks are clearly fine weapons, but I don't like the feel/fit of Glocks in my hand.
Carrying it every day, fairly concealable and comfortable, extremely reliable and accurate, Tritium night sights. Spare mag is full-size with X-Grip adapter. 6 in mag + 1 in pipe + 8 in spare = 15 of 45 ACP. Buds still has them at $621 - better hurry!
Just got a 30sf. Love shooting it. I still need to get a holster for it so I haven't carried it yet.
XD-S. Just do it. You know you want to.
"Be polite, be professional, but have a plan to kill everyone you meet."
-General James Mattis, USMC
Glock 30, size, capacity, and .45.
I carried a 36 for a bit, but that particular pistol was not reliable.
I have a CW45 and I do not consider it a subcompact, that grip is just too long, I wish it were the size of my CW40. The only other problem I have with the CW45 is it will not run semi wadcutter bullets, the ejecting case runs right into the wadcutting edge of the next cartridge in the mag.
I have shot a box of shells through an xds that is the one you want.
I just bought a Glock 30 and really like it. It's not a whole lot bigger (longer, taller) than my Walther P22 but it is a little fatter.
"These days I go down to Wal-Mart and they sell 'em in the back.
Some people wanna take 'em away, why don't you go bust them boys that's sellin' crack.
Guns, whether Remingtons 'er Glocks.
Come on man it ain't like I'm a slingin' 'em on the block." - Justin Moore
Perhaps a bit heavier and chunkier than the OP wants....but hey, quality and reliability have been the name of the game in my Sig 220 Compact SAS:
Here it is in an Occidental Leather IWB: Phoenix Stronghold:
Another vote for the Backup 45.
XDS...almost same exact overall dimensions as my shield...but filled with 230 grain goodness.