[ChrisD46]

Seems to me there would be a nice market for at least the .40 cal Glocks ?

 

[domino1]

I don't think they were good sellers. Glock has recently brought back some of the "C" models.

 

[Rusty Guns]

That's what I was thinking just lack of sales.
Fine for range shooting, but not so much for carry of in house self defense.
Still a nice pistol. A friend was using one for Shooting Pins, but the front sight kept getting dirty.

 

[nikerret]

I don’t think the benefits outweighed the drawbacks. Hard to, there weren’t many benefits.

 

[BobinNC]

Buy an extended threaded barrel. Screw on the muzzle brake of your choice. Voilà you now have a compensated Glock.....

 

[March817]

...and change the recoil spring.

 

[Syclone0538]

They're weren't, I think they just do some every few years. 17C and 19C are available now.

 

[9x45]

First of all, they were not compensated, they were ported. Big difference. A compensator goes on the end of a threaded barrel, and runs a Major floor load to get the comp going right. This is a compensated USPSA Open Major 9x19 gun. That's a 125 gr going over 1,340 fps.

 

[CDW4ME]

I've got a 19c and a 23c
I've carried them a few times in the past, the horror.
Stick a regular 32 barrel in the 23c and presto a non-ported 357 Sig, versatile.

 

[cciman]

Why? Sell me.
Truly, why do I need a ported Glock? What does it do for me that a regular priced Glock won't?

 

[Buckeye63]

Two extra holes in the barrel makes my 21C tame as a kitten

 

[Mike-M]

Here's what happens unavoidably by the unalterable laws of physics when a recoil-operated auto-pistol is ported, COMPARED to the same unported pistol firing the identical ammunition:
1. Muzzle velocity is lowered, which increases bullet drop in any specific distance to target, and causes items 2 and 3.
2. Muzzle energy is lowered, which reduces ballistic terminal performance.
3. Muzzle momentum (power factor) is reduced, which directly causes item 4.
4. Slide recoil velocity is lowered, which ALWAYS places the operation of the pistol closer to functional failure, especially if the shooter fails to hold the pistol firmly during recoil.
5. Aural sound blast around the shooter is increased significantly, especially in confined areas.

ALL of the above ALWAYS happen, even if the shooter doesn't know or understand basic physics and ballistics. Just because the shooter "never heard or read Glock saying that" does not change the effects of the physics involved and described above.

ANY of the above should be enough to disuade the informed shooter from using a ported recoil-operated auto-pistol as a WEAPON.

Now, all such concerns fade when in the realm of GUN GAMES at the range. In some types of rigorous high-end competition, a ported pistol's potential reduction of muzzle flip may be worth the risk of all the performance degradation caused by porting. The aural blast will always be made inconsequential by the good hearing protection nobody gets to wear when using a pistol during a real-world defensive event.

I know of a newbie officer in a small department in Tennessee that allowed a lot of personal choice in his self-purchase of a duty weapon. He chose a G21C. After a few months and some exposure to the aural blast, he sold it at a loss to a friend and bought a plain G17...a wiser although slightly poorer man.

 

[Syclone0538]

...
4. Slide recoil velocity is lowered, which ALWAYS places the operation of the pistol closer to functional failure, especially if the shooter fails to hold the pistol firmly during recoil.
...

Did Glock keep the slide weight and spring rate the same?

 

[Justin.schmidt23]

Here's what happens unavoidably by the unalterable laws of physics when a recoil-operated auto-pistol is ported, COMPARED to the same unported pistol firing the identical ammunition:
1. Muzzle velocity is lowered, which increases bullet drop in any specific distance to target, and causes items 2 and 3.
2. Muzzle energy is lowered, which reduces ballistic terminal performance.
3. Muzzle momentum (power factor) is reduced, which directly causes item 4.
4. Slide recoil velocity is lowered, which ALWAYS places the operation of the pistol closer to functional failure, especially if the shooter fails to hold the pistol firmly during recoil.
5. Aural sound blast around the shooter is increased significantly, especially in confined areas.

ALL of the above ALWAYS happen, even if the shooter doesn't know or understand basic physics and ballistics. Just because the shooter "never heard or read Glock saying that" does not change the effects of the physics involved and described above.

ANY of the above should be enough to disuade the informed shooter from using a ported recoil-operated auto-pistol as a WEAPON.

Now, all such concerns fade when in the realm of GUN GAMES at the range. In some types of rigorous high-end competition, a ported pistol's potential reduction of muzzle flip may be worth the risk of all the performance degradation caused by porting. The aural blast will always be made inconsequential by the good hearing protection nobody gets to wear when using a pistol during a real-world defensive event.

I know of a newbie officer in a small department in Tennessee that allowed a lot of personal choice in his self-purchase of a duty weapon. He chose a G21C. After a few months and some exposure to the aural blast, he sold it at a loss to a friend and bought a plain G17...a wiser although slightly poorer man.

Do these same rules apply for a compensator?

 

[porschedog]

Chuck Norris and I like shooting our 19Cs
To each their own.

 

[Mike-M]

Did Glock keep the slide weight and spring rate the same?

The weight or mass of the slide and barrel of a ported Glock is lower than that of the normal unported equivalent by well less than one percent across all models. That is a neglible difference.

OEM ported C models always use the same Recoil Spring Assembly as the normal unported equivalent. No difference there.

Do these same rules apply for a compensator?

No, there are many fundamental differences.

The bullet still travels the full length of the unported barrel, plus any additional length that has been added in order to affix the compensator.

When addressing the items in my post #12 above and comparing a barrel/slide with compensator to a normal unported barrel, these change because of the longer barrel:
1. Muzzle velocity increases.
2. Muzzle energy increases.
3. Muzzle momentum (power factor) increases.
4. Slide recoil velocity increases, but with some moderation due to the increased mass of the lengthened barrel and the compensator attached to the barrel.
5. Aural sound blast around the shooter increases significantly, especially in confined areas. (Likely less than a ported barrel, but still disarming.)

 

['Ol Grandad]

Seems to me there would be a nice market for at least the .40 cal Glocks ?

Have you ever shot one? If so, I'm confused at your question, if not, I get why you're asking and would tell you to put a box of boolits through one and then you'll have your answer.

 

[Toocool45]

Simple terms........ it helps muzzle flip/ tames recoil.

 

[littletank]

They are a blast to shoot and collect.

 

[DJ Niner]

ChrisD46, you should know that Mike-M doesn't like ported pistols, as he's made clear by his repeated posts making wild claims against them. As each previous argument he's made has been debunked, he's slowly moved to all-new arguments, ignoring his past failures. A search within Glock Talk for the word "ported" and his user name will show these old debunked claims in detail. In each case, I've made sure to quote him in my responses so he can't go back and change his original post without it being obvious.

So, on to debunking his newest claims...

Here's what happens unavoidably by the unalterable laws of physics when a recoil-operated auto-pistol is ported, COMPARED to the same unported pistol firing the identical ammunition:

Well, I'm going to stop him right here and point out the first flaw in his arguments -- a shooter does not HAVE to use the same ammunition in a ported pistol. If a smart shooter wants to address any of the velocity-related concerns, they can simply select a load that shoots faster, and those concerns are immediately addressed. You'll get the same (or more) speed, and still enjoy less muzzle flip.

1. Muzzle velocity is lowered, which increases bullet drop in any specific distance to target, and causes items 2 and 3.

It is not accurate to say or imply that every shot fired from a ported pistol will be slower than every shot fired from a non-ported pistol. Chronograph readings of individual shots of identical ammo through the same size, comparative models of ported and unported pistols shows that the velocity difference is so small, that the fastest rounds from the ported pistol are often moving faster than the slowest rounds from the non-ported pistol. A thread detailing a velocity test that I personally conducted using ported/non-ported G19 pistols can be found here:
https://www.glocktalk.com/threads/g...s/glock-19-and-19c-velocity-comparison-4-different-loads.1499605/#post-20544836
3 of the 4 tested loads showed overlap in the 10-shot-group velocities.
On average, yes, they are probably slower. Is it a significant difference? Not really.
Can it be overcome? Yes, simply pick a faster load to begin with -- problem solved.

And increased bullet drop due to fractionally lower "C" velocity, at pistol engagement distances, is simply laughable. If you could measure it at all, it would be mere hundredths of an inch.
I do believe that's a new record low for "groping" for a reason to dislike/smear ported pistols.

2. Muzzle energy is lowered, which reduces ballistic terminal performance.

First, not always (see above).
Second, modern defensive ammunition is designed to work across a wide range of impact velocities, even after penetrating intermediate barriers. Ammo designers don't know what pistol their ammo will be used in, or what range the target will be at on impact, so they design the loads to work well even at long (pistol) distances when fired from a short barrel (the most common carry guns). This completely offsets any concerns smart folks have over losing a few FPS in a ported pistol; if it'll work in your 3" or 3.5" pistol, it'll be just as effective (or more so) in your 4" ported pistol.
And third: again, if this is an real concern, then select slightly faster ammo -- problem solved.

3. Muzzle momentum (power factor) is reduced, which directly causes item 4.

See response for #2, above. It's the same answer, for a variation of the same tired argument.

4. Slide recoil velocity is lowered, which ALWAYS places the operation of the pistol closer to functional failure, especially if the shooter fails to hold the pistol firmly during recoil.

You ASSUME slide velocity is lowered, as I don't think you have ever presented any hard data proving this (if you have any from a reliable source, I'd love to see it!). The fact is, the slide and barrel on ported Glocks are lighter, therefor they will move faster if subjected to the same approximate firing forces. I have enough faith in Glock's engineers to believe that this was investigated and addressed in the "C" model Glocks. These guns have been just as reliable in use with quality ammo as similar unported models, and if that wasn't the case, I don't believe they would have offered them for sale (or sold them to police departments, where the pistol's primary use is defense, not games). Certain folks used to claim that "C" models were never issued for Law Enforcement use, but that was one of the claims I have previously debunked on this subject.

And while "...closer to functional failure..." certainly sounds scary, without quantifying HOW CLOSE you are to that point makes it meaningless. For example, if the functional failure point is (hypothetically) a slide velocity of 10 FPS, with non-ported and ported pistols delivering 40 FPS and 38 FPS respectively, is this really something to worry about? No, it's not. So until this can be quantified with hard data, it is quite safe to ignore it in favor of the tried-and-true test of "Does YOUR pistol work reliably in YOUR hands with YOUR selected ammo?".

5. Aural sound blast around the shooter is increased significantly, especially in confined areas.

So what? Unported gunfire will damage your hearing too, so it's not a question of one being safe and the other NOT being safe. If you shoot EITHER type of pistol without ear protection, you will have hearing damage, and if you have ear-pro in place, you will be fine with either type.

Finally, interviews of people involved in defensive shootings often include comments such as "I didn't remember hearing the sound of the shots at all", or similar comments. In many cases, your mind blocks it out completely (run a search for the term "auditory exclusion" and read-up on it). Gunshot noise from the shooter's pistol is just not a factor in most shootings, and if it IS a factor due to location, proximity, or shooter sensitivity, then it will be a factor with EITHER weapon type.