I'm in agreement with usnavymasterchief ... The S&W CS45 is a great diminutive pistol chambered for a large caliber.
Notice it only weighs 23.9 ounces (empty). I believe the G36 weighs 20.11 ounces, empty & without a magazine, and the overall length of the G36 is 6.77". Neither the G36 or the CS45 are exactly "pocket pistols", unless you're talking about large, heavy coats/vests with large, sturdy pockets.
Model: CS45
Caliber: .45 ACP
Barrel Length: 3-1/4"
Capacity: 6 Rounds +1
External Safety: Ambidextrous
Hammer: .260" Bobbed
Grip: Hogue Wrap Around Rubber
Trigger: .305" Combat
Frame: Compact
Front Sight: Novak Lo Mount Carry
Finish: Glassbead
Rear Sight: Fixed 2-Dot
Overall length: 6-1/2" Weight: 23.9 ounces
Material: Aluminum Alloy / Stainless Steel
I also agree you should consider browsing the S&W enthusiast's forum, as it does contain some interesting info from owners ... of which I'm one.
I'm not a big fan of +P ammunition in .45 pistols in general, however, but especially not when fired from subcompact platforms. (The line between "compact" & "subcompact" is an indistinct one, it seems, and more something to be decided by the potential purchaser). The lessened slide mass/increased slide velocity issues ... not to mention the potential for increased perceived recoil, and its potential adverse effect upon controllability ... can sometimes offer the potential for a shooter of such a little pistol to reach a point of "diminishing returns" ...
Some folks will relate their opinions, or experiences, that many HP bullets may not expand when fired from short barreled .45's ...
Maybe not, and certainly maybe not with consistency ... what round will? ... but when we were hosting some limited gelatin testing at our range, both some standard pressure Winchester RA45T 230gr, as well as the RA45TP 230gr (+P), penetrated and expanded similarly in the 4-layer denim test when fired out of my personally owned CS45 ...
If I couldn't get the RA45T loads, I'd opt for the 230gr Gold Dot ammunition, or the 230-gr Golden Sabre ...
It simply shoots MUCH better than it LOOKS ...
Much more accurate than some folks might expect, too ....
Not exactly inexpensive, however ...
A couple of our guys looking for small .45's, one of them a die-hard Colt fan who has generally carried one of the little Colt 1911's for an off duty weapon, bought CS45's of their own after shooting mine at our range ...
You could do worse ...