Have you owned all three? Your opinionated pros and cons of each and which one do you like best? Why?

Personally, I have some how ended up with many of each one. I love them all. I've kept one of each now. I wouldn't mind another 43X to Gucci up but I'm in a toss up between the P365 and Hellcat for EDC. 1. For concealment. 2. It's not Glock. 3. Just so Glock boys can bash me.

Also heard Tom Taylor (CMO of Sig) said that Sig will be coming out with other P365 calibers. That should be interesting fitting something bigger (maybe) into that mag!

43X is a smaller G19 with Shield mags. Still has the issue where it doesn’t point naturally for most.

IIRC, 365 has issues, the XL variant fixes them. Points more naturally, and is more modular. 12 round factory mags vs 10 round factory for the 43X, Shield S15 mags will take weeks, maybe a month or two to arrive after ordering.

No experience with the hellcat.

I also noticed with the 43X and S15 mags, the weight difference seems to throw off my follow up shots. I didn't realize this until someone else mentioned it. Great concept and of course for concealed carry 15 rounds is better than 10 but, I can get 14+1 in a Hellcat with a Hyve extension and still conceal well and it shoots great.

I have a 43X and a 365X. The 365 conceals better IMO. so I carry the 365 more often, but will varry the 43X if clothing permits.

PS. the 365X is a 365 with a 365XL frame. Really nice to shoot and carry

I currently have a Glock 43 (non-x) with extended mag and a 365 (original 365, now with the xl frame) with flush mag.

The 43 with extended mag is only 8 rounds. The 365x (as named by tommyhof above) is 12 standard.

The modularity of the 365 platform is a huge bonus over any Glock.

And to be fair, the Glock 26 is based on the 19, not the 43/x. The 43 is the slim frame Glock series.

off topic, i was carrying M&P 40C like a mad Israeli operator (1 in the pipe) until I saw what happened to Richard of the Texas church shooting; he fumbled his IWB and was killed point blank by a 12 gauge shotgun. I recalled my trust G17, who was on a 10-year vacation, back into active duty as my OWB carry. The cooler helps but I carried it in this mode this past summer too without problem as most people are both suffocating in their masks and too busy with their phones to notice. Sure, OWB is not socially comfortable but it is very comforting to know I have a 18-member wolf pack on my side and they all have steel jaws and harden teeth.

I would love to have a setup of 17 slide on a 19 frame but that just make too much sense so it is not available from factory yet. If this was Texas or Alaska or some other pro-self-defense state, I would carry my G45 MOS or M&P 2.0 MOS long slide with optic and TLR flashlight+IR illuminator but it would be extremely difficult to convince a broken society/jury and judge why I provide myself such unfair advantages over the predators. Therefore, a plain-jane G17 will have to pull all of its weight and some.

For the folks so obsess with conceal-ability, i have good news. Most people are just too self-observant to notice someone on another person hip so just dress plainly and carry thr biggest gun you can work the fastest with.