I've done some searching and haven't came up with anything, figured I'd ask on here. Has anyone ran a compensator on a ported barrel? I'm fairly new to guns, but in theory (in my head) it seems like with some tuning it would create a really flat shooting gun with much less kick.


Sent from my iPhone using Tapatalk

Never heard of such a thing. I imagine it would be defeating the purpose. Just a WAG from my end.

They're both designed to reduce muzzle flip, so how would that defeat the purpose?


Sent from my iPhone using Tapatalk

By making you shoot too low from negative muzzle flip?

__________________
"He was kinda funny lookin'"

... Well I hold the gun sideways, so it wouldn't matter.


Sent from my iPhone using Tapatalk

Look at some of the autos run in Steel Challenge open classes. And other "run and gun" games as well. Ported AND compensated, lightened, etc., etc.

The higher the pressures the better it works. So, hence the .38 Supers, 9x23s, 9mm Dillons. Fully supported chambers to contain rifle type chamber pressures!

All it takes is cubic money.

I have a Smith & Wesson full-size 5 inch Performance Center that I shoot USPSA in the open class minor I don't run a ported barrel but I do run the apex threaded barrel with a compensator I made my own compensators at first I made a three port work very good then I made a four port now I'm in the process of tuning the slide to make it function right I was getting misfeeds and the slide would not lock back on the last round I did some slow motion video of it and seeing the slide wasn't coming all the way back with the four port so I ordered three different wolff Springs. I'm running factory ammo at 1200 ft./s anything lower than that I'm running in the same trouble of the slide not working mechanically right but with the four port compensator and factory ammo at 1200 ft/s and A 14 pound spring so far it's working pretty good I'm getting about 1 inch maximum muzzle rise. This weekend I'm going to do some more testing but I might end up at a 13 pound spring

Do you know of any companies that make a threaded and ported barrel?



Sent from my iPhone using Tapatalk

What caliber and frame length? What's the purpose of the gun? Any barrel can be ported but the slide needs to be ported correspondingly.

Mag-na-port International--The Mag-na-port Process: Handgun Porting

Performance center 9mm. Already ported obviously and I just target shoot with it.


Sent from my iPhone using Tapatalk

As an owner of 2 M&P PC 9mm's, I can honestly say that muzzle flip is fairly null on them. Maybe a tick more on my short barreled Shield than my full size. But pretty much negligible.

IMHO no reason to redesign the wheel. S&W and many other very intelligent firearm designers/manufactures make these things handle the best they can considering what they do. IF a comp on a threaded ported barrel(if there is such a thing?) works better then each do individually, then I think smarter folks then me would have already figured this out.

Jaymoore said that people run the combination in Steel challenge open class, so I assume it works. Honestly I like shooting, but I like modifying pretty much everything I own just as much as I enjoy using them.


Sent from my iPhone using Tapatalk

For whatever the reason, S&W Team shooting member Julie Golob is shown with her PC 5" M&P with a compensator on the home page of Storm Lake Barrels. I guess she figured something out, or because she can have anything she wants, she got the most upper end pistol she could.

It can't hurt, even if you hold your pistol sideways.

StormLake - Performance Pistol Barrels

I have a Storm Lake threaded Barrel that replaced my OEM 4.25" barrel, not a 5". I assume SL has a longer threaded model, but I did not see how to order it. They apparently also port barrels. A phone call is probably in order. If they did something like this for Julie, you should have a shot (sorry).

Remember however that to wring maximum accuracy out of a barrel requires fitting. The common SL barrels are drop in. If you are going to pay $$$$$ for a threaded, ported barrel, I'd get one that a gunsmith will fit to your gun. This fitting will increase your accuracy more than porting and/or a compensator. Smooth and easy shooting is pleasurable, but real tack-driving accuracy is a lot more fun and makes your investment even more justifiable. As mentioned and as you apparently know, 9mm is not too difficult to control anyway, but if you are willing to invest in the ultimate smooth shooting target pistol, the fit barrel is a must IMO. I recently had Apex install one of their barrels for me. This is a target shot by Apex from my new barrel from a Ransom rest (I assume) with pretty average off the shelf ammo:



S&W does have a PC M&P with a threaded barrel. It must be meant for attaching a compensator as the only other attachable device, a suppressor, would certainly not make any sense on a ported barrel.

Performance Center(R) Ported M&P(R)9 with Threaded Barrel | Smith & Wesson

One of the biggest problems using a comp and/or ports is getting enough gas volume to make it work. I shot a M&P ported with a comp for a short while. I had Magnaport port the barrel and the slide on a threaded barrel. I couldn't get the pistol to function correctly (even with a 11# spring) I ended up loading 9 Major and it worked very well (at least for a year when the slide cracked) I sent the pistol back to Smith and they replaced the gun under warranty (I was surprised) The downfall on this scenario was that it took them 6 months to get the gun to me. In the meantime I used my backup M&P (with the comp and ports) to keep competing. I cracked that slide in less than a couple of months (to be fair, that gun had over 100K of minor ammo ran through it). I finally decided that the M&P was not made for Major power factor ammo and bought a STI.

My personal feeling about compensators on a 9mm is that the only way to really get them to work is to load major PF ammo. Anything less than that the comp and/or ports aren't doing anything other than adding weight to the end of the barrel which does reduce the muzzle rise. Just passing on my experience. I've added a bit of "gun porn" in the 2 picture, one is of the old M&P that I cracked the slide on and Smith warranted it, the other picture is of my new blaster.

Attached Images

	CC 3.JPG (58.9 KB, 177 views)
	DSC00599.JPG (60.4 KB, 155 views)

If anybody is interested, the fluid dynamics theory on how compensators work, and work best, shows that a properly designed compensator placed as far toward the end of the barrel as possible produces the maximum force downward. Increasing the size of the holes merely reduces the effective gas pressure, and placing these holes further toward the breech reduces their leverage against rotation.
As Bkreutz verified from his guns, ports are mostly for show with minor power 9mm, producing little muzzle control compared to a proper compensator on the end of the barrel. And even with a proper compensator, minor power 9mm is much less effective than major power 9mm. Why? The force is proportional to the SQUARE of the speed of the gas, just like a jet engine's performance.


As to what you may have seen done to a gun running steel, I have seen enough idiotic bubba engineering to believe you have seen anything. However, that does not mean they actually do anything useful. Ever seen some bubba put giant 4" header pipes on his chevy small block? The net result is it makes it worse. Fluid dynamics is best left to the qualified engineers.

__________________
Science plus Art

Bkreutz is the man to listen to because he's been there, done that and has the financial scars to prove it. I have a long experience owning/operating race guns in USPSA competition. You can put ports and/or compensators on most guns if you have the money to spend. But, unless you are using very high pressure ammo the ports and comps do little or nothing to reduce muzzle flip.

One of the many lessons I learned many years ago was when I had Magna-Port do a 5" 625 for me. The 45ACP round is subsonic, low pressure and the ports did nothing except make the revolver ineligible for USPSA revolver class....Oh well.

I have two S&W M&P CORE guns. One with factory ports in the slide and barrel and the other with no ports or slide holes. Shooting 9mm ammo through each gun shows me no benefit in recoil reduction for ports.

If you're determined to try it, I'm sure you can find gunsmiths who will do it. It's only money.

__________________
Bob.
SWCA 1821

I'm not determined, just figured it would work. I read an article where they tested a Glock with ports vs comp and the ports reduced muzzle flip by 30% and the comp 36%. Now obviously this can vary based on many variables, but I thought it proved that each is affective non the less. This is all just for fun, I don't plan to compete.


Sent from my iPhone using Tapatalk

It comes with a ported barrel and a threaded barrel. It does not come with a ported and threaded barrel. The threaded barrel should work fine with a suppressor.

I see what you are saying. The description makes it sound like it comes with three barrels:
"Features
• Ported barrel & slide
• Threaded barrel & standard barrel
• Threaded barrel - 1/2” x 28 - 2A"

None of them is both threaded and ported.