Porting only helps in rapid fire, to lessen muzzle rise during rapid fire. Other than that, there's no real benefit.

For me, they're a real benefit for defensive shooting. They help you stay accurate and fast at the same time.

 

I have a 20C. I can tell you that the porting does indeed reduce muzzle flip and makes the pistol easier to get back on target. That being said there are some drawbacks. One of which is the noise. It is extremely loud when you touch one off, especially when using full octane loads. People next to me at the range are all like WTF was that? Can't imagine what it's like indoors. :shocked: Next issue is the flame that exits the barrel in all three directions; one out of each side port and of course out the muzzle. I've never fired it at night but I can imagine it looks like a real flamethrower. As you can see there are tradeoffs to the ported barrel.
I decided to purchase a standard barrel for those times that I want to curtail the noise and flames.

 

I'd rather have a comp than ports. You're pretty limited on how much the ports can do compared to a comp. The ports do help to a degree but not like a comp would. Down side to comp is needing another barrel and increased length.

 

I wouldn't pay extra for one. I saw someone online had some G17c's for sale, my initial reaction was why in the world would you need to comp a full size 9mm. I cannot imagine for the average or even excellent shooter it matters at all in 9mm.

 

I was going to add except in case of a 10mm, and then I bet it functions as it should, albeit loud as hell.

 

I wouldn't pay extra for one. I saw someone online had some G17c's for sale, my initial reaction was why in the world would you need to comp a full size 9mm. I cannot imagine for the average or even excellent shooter it matters at all in 9mm.

It makes a huge difference. It's awesome.

But only when rapid firing. Like if you had to defend yourself.

 

I shot a 17C and was not impressed (9 doesn't have much recoil to begin with) but I did notice it was loud as hell.

 

I shot a 17C and was not impressed (9 doesn't have much recoil to begin with) but I did notice it was loud as hell.

Porting does nothing to attenuate recoil. It's all about muzzle rise. You had incorrect expectations, which wasn't the pistol's fault.

 

I have a 22C and a 31C. There is a noticeable difference in muzzle rise. It is much easier to stay on target. Your front sight will get dirtier. Does it shoot flames, yes. Does it blind you, no. It happens too fast. This is a pic of my 31C.

 

Muzzle flash varies with load; I shot at dusk to see the difference.
Some SD ammo produces lass flash than others.
I like my 19C and 23C.
I don't regard them as especially loud, but I shoot outdoors, wear double ear protection and have a Glock 32 (357 Sig).
IMO the regular 32 seems louder than my C models.

 

I don't care for the C models, personally. I've got a ported G17L, but its not necessary.

 

I have a 22C and a 31C. There is a noticeable difference in muzzle rise. It is much easier to stay on target. Your front sight will get dirtier. Does it shoot flames, yes. Does it blind you, no. It happens too fast. This is a pic of my 31C.

Impressive timing.

 

Your front sight will get dirtier.

Not on the later models, they re-angled the ports a bit.

I'd own a C but it would be range only.

 

I sometimes wish I had kept my 23C. Not enough to actually have gotten a replacement in 13 years but it was a fun shooter. And it never left me night blind. And dropping in a standard barrel for non ported use is easy as pie. There is no down side for someone who likes the idea of a C model.

 

I have a Kahr P40 that is Mag-na-ported... bought used online. I like it and it's my favorite carry.

When I started buying some Glocks two years ago, I got a G23C. I like it for my middle-weight "battle pistol" and I do have to wipe the Trijicon HD front NS after shooting a bit at the range. The orange FS starts disappearing after a while, but no biggie.

Wynn

 

I have seen a few Glocks that have the ports in the barrel and slide. I always wanted to shoot one to see how it handled, to see if it was any different. Does anyone have any practical experience shooting one, and do the ports make any kond of difference? I still see some for sale from time to time and am tempted to get one. Thanks for any info!!

Here you go:
[ame="https://www.youtube.com/watch?v=cRaX7ZXpi64"]Glock 17C Compensated Full Size 9mm Review (HD) - YouTube[/ame]

 

I have several "C" model Glocks, and shoot them regularly. There is definitely less muzzle flip, but regular practice is required to take advantage of the reduced movement.

Although many folks insist that there is no reduction in recoil, I disagree. Any load that produces less velocity with the same total projectile weight will produce less recoil, and it is common knowledge that "C" models usually result in a small reduction in velocity over using the same load in a non-ported pistol. If the bullet is moving slower when it leaves the barrel, it is mathematically generating less recoil, period. However, this reduction is even less noticeable than the reduction in muzzle flip, so it is not surprising that it is rarely mentioned as an advantage. The reduction in recoil IS there, but it is even less noticeable than the reduced muzzle jump.


.

 

I've never owned a C model but have shot a few and to echo others responses...LOUD and BRIGHT...especially a compensated 357. I'd pick one up just to have and shoot occasionally if it was priced right but wouldn't actively seek one out or pay extra for it.

 

Impressive timing.

I would like to take credit, but I cannot. I shot a magazine through slow-motion video on the iPhone. I isolated the video frame by frame and took a still picture of that.

 

I carried a G23-C as a LEO and loved it. The ports reduced the muzzle climb and allowed for a faster recovery time on target. I qualified with it at our low light/night shoots and never had a problem with it ruining my night vision, nor did I experience any issues with shooting from close quarters/retention. I actually got more flash and powder residue during qualifications from shooting a revolver when I carried one.

When I retired, I sold the G23-C and picked up a G19 to go with my G26. I recently swapped out the stock G19 upper for a G19-C upper. The 9mm is not a hard kicking cartridge, but the compensated version allows for even faster recovery time on target.

ETA:

I just ordered a G17-C......

 

Porting does nothing to attenuate recoil. It's all about muzzle rise. You had incorrect expectations, which wasn't the pistol's fault.

It completely depends upon the powder loaded into the cartridge. Self defense 9mm rounds use slower burning powders that produce lots of gas. That's what works the ports.

Range ammo uses faster burning powder and doesn't really produce enough gas to push the gun down.

 

I carry a G23c every day and have a 9mmc Conversion barrel for training. Neither one can be beat.

 

It completely depends upon the powder loaded into the cartridge. Self defense 9mm rounds use slower burning powders that produce lots of gas. That's what works the ports.

Range ammo uses faster burning powder and doesn't really produce enough gas to push the gun down.

:rofl::rofl::rofl:

No.

I don't know where you're getting your info, but I suggest you find another source.

 

I have a 17C that I bought new not long ago. Yes there is a difference in muzzle rise especially with hot +P loads. It also has a louder concussion as stated before. I like it a lot though.

I also think the cuts look bad ass. Almost 'meaner' than a regular Glock.

 

For anyone wanting lighter recoil i suggest liberty civil defense.

9mm goes 2000fps out of a 4.5in barrel. Recoil is half or less than winchester white box 115gr.

Their 45acp is 1900fps. 10mm, 2400 fps. 40, 2000fps.

The gel tests are impressive.

...

The only negative thing i can think of on the C models is that we've had threads asking this before, and someone cited instances of part of the jacket shaving off the bullet and flying out of the port. There was one injury reported.