I happened upon a Glock 48 9mm recently and really liked the feel of it.
They are really thin and light.
Not really a single stack or a double stack, more like a stack and a half.
It has a nice trigger, and piles the brass about 10 feet to the side, instead of bouncing them off my head like older Glocks.
This is the magwell view of a G43 singlestack, the G48 "stack and a half", and a G19 doublestack.
The G19 is a great pistol, but it's always felt like holding a chunk of 2x2 to me.
The G48 has a "less angled" grip angle, and less of a hump on the backstrap compared to the G19.
To me, it feels more like an M&P or 1911 than a typical Glock.
Here you see, on top, a G19, it holds 15 in it's flush fitting mag.
Next is my G48, holds 10 in a flush mag (factory mags)
And on bottom, a G43 single stack, holds 6 rounds in a flush fitting mag. Or course with any of those you can get mag extensions, or in the case of the G19, you can use G17 mags or even longer ones.
Here is where it gets interesting. You see those two metal mags off to the side above ? They are made by Shield Arms of Bigfork, Montana.
By doing away with the thick polymer wrapping that the Glock mags use, and going with an all steel mag, they can get 5 extra rounds in there, and still have a flush fitting mag. The one on the left has one of their +5 extensions on it. It sticks down 1 1/2" or so but gives you a 20+1 pistol.
In this pic, there is a 15 round SA mag in the gun, and the 20 round mag next to it.
I was O.K. with the silver slide, but in keeping with my FDE theme, today I Cerakoted the slide in FDE (O.K. it's actually S&W Tan).
The G48 by itself looks like a full size pistol, but when I put my .45 Shield over it, you can barely see the G48.
The barrel on the G48 is a hair longer (4.2") and the trigger reach is shorter and higher up than the deep height Shield.
Grip lengths are very close.
Here you have the G48 on top, .45 Shield on bottom, the G48 is very thin for a Glock.
A 9mm or .40 Shield would have been better to compare size, but I no longer have one, just the .45.
My G48 came from the factory with Ameriglo night sights. I really like how that red ringed front sight stands out in the day.
The G48 is easy to shoot well with the grip being just long enough for all your fingers, and it having a 4.2" barrel.
But it still amazes me when I pick it up, how thin and light it is.
And oh yeah, it holds 15+1 rounds without any extensions !
They are really thin and light.
Not really a single stack or a double stack, more like a stack and a half.
It has a nice trigger, and piles the brass about 10 feet to the side, instead of bouncing them off my head like older Glocks.
This is the magwell view of a G43 singlestack, the G48 "stack and a half", and a G19 doublestack.

The G19 is a great pistol, but it's always felt like holding a chunk of 2x2 to me.
The G48 has a "less angled" grip angle, and less of a hump on the backstrap compared to the G19.
To me, it feels more like an M&P or 1911 than a typical Glock.
Here you see, on top, a G19, it holds 15 in it's flush fitting mag.
Next is my G48, holds 10 in a flush mag (factory mags)
And on bottom, a G43 single stack, holds 6 rounds in a flush fitting mag. Or course with any of those you can get mag extensions, or in the case of the G19, you can use G17 mags or even longer ones.

Here is where it gets interesting. You see those two metal mags off to the side above ? They are made by Shield Arms of Bigfork, Montana.
By doing away with the thick polymer wrapping that the Glock mags use, and going with an all steel mag, they can get 5 extra rounds in there, and still have a flush fitting mag. The one on the left has one of their +5 extensions on it. It sticks down 1 1/2" or so but gives you a 20+1 pistol.
In this pic, there is a 15 round SA mag in the gun, and the 20 round mag next to it.

I was O.K. with the silver slide, but in keeping with my FDE theme, today I Cerakoted the slide in FDE (O.K. it's actually S&W Tan).

The G48 by itself looks like a full size pistol, but when I put my .45 Shield over it, you can barely see the G48.
The barrel on the G48 is a hair longer (4.2") and the trigger reach is shorter and higher up than the deep height Shield.
Grip lengths are very close.

Here you have the G48 on top, .45 Shield on bottom, the G48 is very thin for a Glock.

A 9mm or .40 Shield would have been better to compare size, but I no longer have one, just the .45.
My G48 came from the factory with Ameriglo night sights. I really like how that red ringed front sight stands out in the day.
The G48 is easy to shoot well with the grip being just long enough for all your fingers, and it having a 4.2" barrel.
But it still amazes me when I pick it up, how thin and light it is.
And oh yeah, it holds 15+1 rounds without any extensions !