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View Full Version : Ported Barrel for CW9 & P9



Cartero391
12-31-2010, 02:17 PM
Does anyone have any shooting experience with the 4" 9 mm factory ported barrel? Does the ported barrel have polygonal or standard rifling? Does the ported barrel reduce muzzle flip and reduce recoil? Is the ported barrel interchangeable with both the CW9 and the P9? Thank you in advance for your opinions and shared experiences.

Diocoles
01-02-2011, 04:10 AM
I'd like to know as well. I'll be checking for responses. Pics would be nice as well. Interested to see what it looks like in the CW9.

GOOFA
01-03-2011, 06:28 AM
Here's a few pics of my K9 Elite 03 shown in different angles and both sides. I know it's not a CW9 but I thought it might give you an idea anyway. As far as the ported barrel goes, money well spent in my book. Softer shooting and improved accuracy due to reduced recoil and muzzle flip.

http://farm5.static.flickr.com/4024/4349734732_9200d08a57_d.jpg

http://farm3.static.flickr.com/2771/4348986995_b698e8d19b_d.jpg

http://farm5.static.flickr.com/4008/4348986475_eceffbc966_d.jpg

http://farm3.static.flickr.com/2480/4348985817_8af2232cc8_d.jpg

http://farm5.static.flickr.com/4037/4348986209_3f7e068eed_d.jpg

foxmoor
01-03-2011, 08:50 PM
I'm on the opposite side of the fence, as I have one and shot it in my P9, but I didn't notice any significant change in recoil or time for follow-up shots. It's an interesting toy and looks interesting, but just a novelty item in my book.

Kent in MI

Cartero391
01-03-2011, 10:04 PM
Thanks Goofa for posting pics.
Found out from reviewing another web site that that the 4" Kahr factory ported 9mm barrel has polygonal rifling and is fully interchangeable between the CW9 and P9. Still don't know enough info about reducing muzzle flip.

Does anyone have any pictures of porting job on a Kahr by Magnaport?

Cartero391
CW9 X 2
PM9

jocko
01-04-2011, 06:18 AM
Thanks Goofa for posting pics.
Found out from reviewing another web site that that the 4" Kahr factory ported 9mm barrel has polygonal rifling and is fully interchangeable between the CW9 and P9. Still don't know enough info about reducing muzzle flip.

Does anyone have any pictures of porting job on a Kahr by Magnaport?

Cartero391
CW9 X 2
PM9

on this forum under jocko's custom PM9. That is a magna ported gun.

Certainly not a novelty item IMO. Never been disproven one time that a magna ported gun does NOTHING. My g19 is magna ported and it was a dream to shoot anyway but after the magna port job, this gun just sits there waiting on the second shot. My smitty at Accurate Iron, Mike Cwyrus is a glock cometitive shooter and he told me that was the smoothest G19 he had ever shot. Porting ain't gonna please very one. No doubt most all 9's are pleasant to shoot out of the box, so no doubt felt recoil difference will be less than say a 40 cal or 10mm, but it is still there.. I think someone posted here or over n the elsie pea forum a study done by some university on ported guns and recoil reduction in percentages and I think the report basicallys tated that the higher thec aliber (more powerful gun) the bigger the percentage was of recoil reduction on a ported gun. I think they stated that the 44 magnum reduction wasover 30% ..

Lots of myths about ported guns,to. One just has to shoot one and it is more than just round holes drilled on top of a slide to. If you have any doubts, just don't do it, best advice I can give anyone..

Warhammer
01-04-2011, 08:05 AM
Mine's a K40, not a 9mm, but I can definitely tell the difference in accuracy, muzzle flip and next shot follow up. I bought the 4" ported barrel about 10 years ago and I haven't regretted it a bit. The 40 was never unpleasent to shoot before, but it's eve nbetter now. The only problem is that it defiently changes the way the gun works with some holsters. Closed end holster (which I don't like anyway) are completely out. With IWB holsters, just be aware that there is 1" of barrel sticking out the end. That's part of why I got into making my own holsters, so I can carry my K40 (it's my EDC) with the 4" barrel installed. Wit OWB holsters, there really isn't much difference.
http://img.photobucket.com/albums/v409/rlkeely/IMGP2161.jpg
http://img.photobucket.com/albums/v409/rlkeely/IMGP2152.jpg
http://img.photobucket.com/albums/v409/rlkeely/IMGP2145.jpg
http://img.photobucket.com/albums/v409/rlkeely/IMGP2143.jpg
http://img.photobucket.com/albums/v409/rlkeely/IMGP2144.jpg
http://img.photobucket.com/albums/v409/rlkeely/IMGP0988.jpg
http://img.photobucket.com/albums/v409/rlkeely/IMGP0981.jpg

jocko
01-04-2011, 10:01 AM
nice photos, and ur also shooting a MK40 to compared to the ultra lighweight PM40. No doubt in my mind the MK40 would be more pleasant to shoot than the PM 40 even it each one was ported.

warhammer: If I might ask, what were your objections to have the slide and barrel magna ported over what you have now??

Hardscrable
01-08-2011, 11:12 AM
Apparently no one has experience/opinion of MagnaPorting. I was on their website yesterday and wondering how much difference it would make if done to a CW 40.
I have had (and loved) a FNP-40 for a few years after years of smaller caliber semi-autos or 38 special. Didn't like carrying & concealing that large and heavy of gun all the time...especially in t-shirt weather...so I end up with a pocket pistol or J-frame most of time. A while back bought CW-40 with Crimson Trace. Am having trouble shooting...control & accuracy. As a senior citizen, I know my hand/wrist strength is diminishing (eyesight too- trifocals) and it probably won't get any better. Thought maybe I would have to sell gun and try something else (slightly heavier, different brand, or maybe both in a 9 MM). Saw an ad for MagnaPort. Went to website -would cost $ 140 + shipping, etc. Sounds interesting but didn't want to invest more $$ and still end up getting rid of gun. Saw this thread and was hoping to hear from 'the voice of experience' on MagnaPort.

jocko
01-08-2011, 12:11 PM
hardscrable

PM sent.

Longitude Zero
01-08-2011, 12:33 PM
I am curious as to the upward blast when the weapon is held in the "Close Combat Position". Meaning my elbow is locked into my hip and the weapon is basically belt level 2"-3" in front of my belt buckle.

jocko
01-08-2011, 12:41 PM
I am curious as to the upward blast when the weapon is held in the "Close Combat Position". Meaning my elbow is locked into my hip and the weapon is basically belt level 2"-3" in front of my belt buckle.

I have not done alot of that type of shooting but with my K9, G19 andPM9 all ported, I can't call it a deterent. No doubt if you stick it under your nose, you might need a nose job, but stick any gun under your nose and see what u get. I am sure if you look long enough u can find some down sides to ported guns, just like I can find down sides to not ported guns, U have to weigh allthings out and then make a decision. Me telling you one thing and u experienceing another is not my intentions. All shooters experience felt recoil differently. Gary b lives his PM40 and claims no issues with recoil. Many do report that, so again different strokes for different folks.

Personally in that position u call close combat, I just cal lit hip shooting. I can't hit jack sh-t that way, so I try to do most of my shooting in the position I think I can hit something with. To many scenarios for me also.
Ur still gonna get muzzle blast with a ported gun, so please don't think the porting takes away all of the muzzle blast, It does not..

Longitude Zero
01-08-2011, 04:15 PM
Yup that's it. Pretty much a standard combat technique taught to LEO's. When you are within touching distance of your assailant you do not extend the gun out you hold it close and fire. Inside of 1-3 yards accuracy with a little bit of practice accuracy can be quite good.

With non ported barrrels you get virtually no upward blowback. That is one reason my department and many others do not permit ported weapons. Ported guns are fantastic for target/competition shooting. For up close and personal defense maybe not so much.

I am with ya on the felt recoil. I have NO problems with my CW45 but others think the recoil is brutal. To me it is nothing to worry about. I am just as accurate with my Kahr 45 as my 9. Also to me the 40's have bit more muzzle flip than does either the 45 or 9. Each of us is different and that is a good thing.

ORSalesRep
01-12-2011, 04:02 PM
Apparently no one has experience/opinion of MagnaPorting. I was on their website yesterday and wondering how much difference it would make if done to a CW 40.
I have had (and loved) a FNP-40 for a few years after years of smaller caliber semi-autos or 38 special. Didn't like carrying & concealing that large and heavy of gun all the time...especially in t-shirt weather...so I end up with a pocket pistol or J-frame most of time. A while back bought CW-40 with Crimson Trace. Am having trouble shooting...control & accuracy. As a senior citizen, I know my hand/wrist strength is diminishing (eyesight too- trifocals) and it probably won't get any better. Thought maybe I would have to sell gun and try something else (slightly heavier, different brand, or maybe both in a 9 MM). Saw an ad for MagnaPort. Went to website -would cost $ 140 + shipping, etc. Sounds interesting but didn't want to invest more $$ and still end up getting rid of gun. Saw this thread and was hoping to hear from 'the voice of experience' on MagnaPort.

I MagNaPorted my P9 and I love it. I much prefer having the gases escape out the tops sides at about a 45 degree angle rather than the Kahr ported barrel where they come straight up.

jocko
01-12-2011, 04:22 PM
Yup that's it. Pretty much a standard combat technique taught to LEO's. When you are within touching distance of your assailant you do not extend the gun out you hold it close and fire. Inside of 1-3 yards accuracy with a little bit of practice accuracy can be quite good.

With non ported barrrels you get virtually no upward blowback. That is one reason my department and many others do not permit ported weapons. Ported guns are fantastic for target/competition shooting. For up close and personal defense maybe not so much.

I am with ya on the felt recoil. I have NO problems with my CW45 but others think the recoil is brutal. To me it is nothing to worry about. I am just as accurate with my Kahr 45 as my 9. Also to me the 40's have bit more muzzle flip than does either the 45 or 9. Each of us is different and that is a good thing.

haven't done alot of hip shooting like ur talking about but I have done enough with my magna ported PM9 to say IMO it never blew my hat off, or burned my cloths or anything of that nature. If I felt any blast from the ports upward, it was so negliable that I can't attest to if it was the result of the porting or just the gun being in such a position that it is impossable to not get some muzzle blast anyways...I guess tome that wouldnt even be a worry on my part. I would think if indeed a upward blast was evident the BG would feel it just as much as I would. If that is considered a real disadvantage over porting advantages, then Indeed I have said this many times. DON'T PORT IT Shoot it like it came out of the box...

JackRyan
08-10-2020, 01:36 PM
The ported barrel in my P9 definitely has a better follow up shot and noticeably less recoil. Not a lot less but less recoil. When shot at night, There is a bit of a small flash, but you get that with any short barrel ecven with no port. I have the K40 as well. The K40 might be one of the best single stacks ever made

wyntrout
08-10-2020, 10:39 PM
The Kahr ported barrels throw the blast forward and up and allow the full velocity of your rounds. I had a Mag-na-ported P40 and then got a DLC P40 and added the ported barrel... much better. The flash is almost unnoticeable in difference with the regular barrel... and ... doesn't foul your slide and the front sight.
The Mag-na-ported one would be more troublesome if you held it close to your body, while the Kahr ported barrel slot is slanted to the upper front... 30-40 degrees, a guess.
Pictures:
Mag-na-ported P40 with bright stuff!
" with Winchester PDX1.
" with Rem UMC 180-gr FMJ, bright!
Stacked from top: P9, P40, and Glock 23C
Last the P9 with 4" ported barrel. I couldn't find more pictures of the Kahr ported barrels being fired... 9mm or .40. The one shown is with defense ammo, the Federal Micro HST 150-gr without much flash.