KKM 4 port Comp and Barrel

[Dump1567]

Has anyone tried one of these? I was thinking of making a G22 into an open steel gun and wanted to use one of these barrels. I would probably only shoot minor out of it.

[glockster96]

Dump,

Why are you planning on shooting just minor? I thought comped guns were more effecient with major loads. Besides, you want that steel to fly down, not just fall down. :)

[Dump1567]

I doubt this style comp will work properly with .40 cal ammo. It's my understanding to do .40 major correctly, I need to go with a hybrid barrel which would require the slide to be cut. This is all just a matter of cost. I think the KKM may be the cheapest way to go with my intended application.

[Custom Glock Racing]

With a 4 port you are most likely going to have to run loads that are close to major to get the gun to cycle.

[Dump1567]

Matt,
What do you think about the Glockmeister 2 port model?

[Custom Glock Racing]

Im not familiar with it. But a comp requires lots more gas to run and cycle. If I as going to do it with minor steel loads I would go with ports only.

[ryucasta]

Dave,

The comp that Tom Novak built for me runs both Major and Minor loads well. I would suggest contacting him about it. If you want to try it out I'll be at the SSA match on Sunday. Or better yet just PM Yar since he tried the gun at the last match.

[Dump1567]

Raul,

What barrel are you using. Does the comp just screw onto the barrel? What lb. recoil spring?

[Dump1567]

Matt,

Here's the 2 port from Glockmeister.
http://glockmeister.com/catalog/images/KKMComp1.jpg

[ryucasta]

I'm using a Briley barrel and it simply screws on. For steel I'm using a 12 pound Wolff spring.

[mad scientist]

Mat,
I have a 9 gun with a Briley barel and ther 6 port comp
2up and 4 to the side. I use 130 power loads for steel matches.
the gun is setup with a custom spring in the 10 pound range.
this set up is very efective and will shot reliably. On this gun I am using a doctor with with a sliced up Caspian slide. The gun is lighter than a stock 17 and indexes realy fast. The only draw back is a litle more dot lift than my Ipsc rig But this is not a problem on steel as indexes are by far more important than follow up shots .
As my instructer always told me "you are faster when you dont miss"
so by all means give one a try they are loads of fun.

[Mell531]

Hi Guys,
Tom Novak's comp and barrel set-up hands down, end of story.
DVC,
Mell
http://www.glocktalk.com/showthread.php?s=&threadid=155230

[mad scientist]

Mell,
Toms comp setup is nice but is not the end of the story.
You have not shot my comp I know this as there are only two in
guns at this time.
Brief history : I have been shooting open guns for about 2.5 to3
years . I shoot 500 to1000 rounds per week and am at73% IPSC.
I have shot open guns from 10 diferent smiths and Toms guns however nice that they are simply donot have enough porting to take advantage of major loading. I have a great gun from Tom but it is relagated to steel with light loading. For fast multiple shot targeting i.e. IPSC you need lots more ports and more powder to work them than what I have seen from Tom.
If your comp is diferent than the 2 up with holes to the side please correct me. In my Ipsc gun I am using a 6 port comp with two hybrid holes and one slot in the barrel . This set up is as flat as the best 1911 guns I have shot and flater than most If you would like to see what I am doing go to www.openglock.com
Jonnie

[Mell531]

Hi Mad,
Okay what I was trying to say is this, Tom's new comp and barrel set-up is very effecint. John you may have a good comp also I would have to try it in 40cal. or have someone I know that has shot your comp tell me about it. Thank you for showing the video on your website, your gun looks like it's shooting flat are they major 9mm loads? My gun is an Open Glock 22 .40cal with a Docter sight. I shoot a 155gr. bullet major load in IPSC matches with a 10lb spring and a 135gr. bullet in Steel matches with a 9lb spring my gun was set up by Wilbert Spruell and Tom Novak, Wilbert did the trigger and internal work. I have been shooting IPSC for 15 years and shoot about 500 rounds a week, if that means anything, I don't think it does.
DVC,
Mell

[mad scientist]

Mell,
I hope that you did not think I was knocking your set up
or Tom . what I was tring to point out was from what I had seen
Tom needs to go further.
As a gun smith I can understand the whys as up till about two weeks a go readily avaliable fully suported barrels were not available from any one. After thinking about what I had said I can see how taken in the wrong light it could be taken as a dig. This is not the case . Let me say again Tom builds quality guns from what is available.
If he wanted to go further with the glock he would have to do as I have done and make or have made the right parts.This is what I have done.
Comps are a physics nightmare so I will not go into it here. but the short story are presure , gas volume , and surface area. all must be high inorder to control and soften recoil. My exsperience with 20 to 30 comps of others designs and 7 of my own showed that hybride holes are needed to alow presure to be controled so that burning powder in suficiant quantity reaches the muzzle and into the comp. In order to achieve this there has tobe enough suport in the chamber to contain the presurue spike that ocures before the bullet reaches the first blow hole.
That being said Tom was handicaped because there were no barrels
that provided that suport. As a result of my work with welded up glock barrels Kevin from kkm is now making a replica of what I did
. Tom did what any smart smith would do build up to the potential of the weekest link. If you have any questions as to this give briely a call . There position is thst there barrels are cut with the same suport as standard. Believe me if there was a ready option I would not have gone to this exstent .
Glocks start poping cases at about 6.5 of 3n37 in 9 .By the way my guns are in 9 and at area 6 I cronoed 172 with 8.7 of 3n37 and 125 hollow zero at 1.145 use this info at your own risk as most guns are not upto the task.
I hope this answers your questions if you have more call me at 770 277 0586.
I hope to bring a slicked up version of my proto to market real soon with an improved mount system and factory produced barrels.
Anyone interested give me a call
John Nagel
Thunderbolt customs

[Mell531]

Hi John,
No I did not take your comments in the wrong way, I did not know of your comp but I wish you success. Are you sure you are talking about Tom's NEW comp? Please go to this thread http://www.glocktalk.com/showthread...threadid=155230 for pictures of his NEW comp. John my email is Mell531@Hotmail.com let me know when you have them for sale. Are the 9mm in your video major?
DVC,
Mell

[mad scientist]

Mell ,
In my e-mail I let you know that I am building major 9 guns
thougt I would let every one out there know the same.
major 9 loads of fun and brass is cheap. 7.50 per 1000 from brass man brass.com
Johnnie

[Dump1567]

John,
I like that mount. Are you going to have those for sale anytime soon?

[mad scientist]

Dump,
The mounts are coming .But like yhe comps they are
built one at a time for know. that being said I am on the 3
design and they just keep geting better. I want what
I put out to be the best product I can think up
I am glad every one likes what I am doing and am incouraged
to keep going at it. Hopefully I can go to market soon.
If you would like a mount made up call me at770 277 0586
Johnnie