>>645336
You don't need these things. Night sights are the only thing that I would definitely recommend, but even those aren't strictly necessary.
In regards to which firearm you choose, OP, the G26 is a fine choice. At the very least, it's a safe choice. Glocks in general are the Toyota Camry of the gun world: they do everything you need them to, they're reliable, and they're inexpensive.
If you want to go cheaper without sacrificing reliability, give Ruger a shot. If you want to go fancier, get a Sig, but just know that the extra money doesn't mean that it'll beat the Glock standard in terms of reliability.
Just don't worry about trying to be too tactical at first. Get your Glock, get a good holster, and just practice the basics as often as possible:
- marksmanship at the range
- dry fire practice at home
- drawing quickly from concealment
You do that and you'll be better off than someone who practices less but has some fancy gun and practices unrealistic tactical scenarios. Reload and malfunction drills are absolutely necessary as well, but don't get hung up on them: the chances of you having to reload or clear a malfunction while under fire are low with a gun like a Glock, and if it happens then you're probably already dead.
Of note, your chances of having a malfunction go up significantly if you carry on an empty chamber. This should not deter you from carrying that way if that's what you're comfortable with, but you need to put a lot of thought into the risks vs. benefits of carrying both ways.
The most important advice I can give for a new concealed carrier is this: have situational awareness. If you can spot a threat before it's a danger to your life, you're already a step ahead, and your chances of surviving the encounter are much greater no matter what kind of weapon or training you have.