Krebs KCIMS on a VZ 58

[briang2ad]

www.krebscustom.com
Krebs Custom SHORT Titanium Muzzle Brake - 7.62
Another option for the Krebs Custom Interchangeable Muzzle System is now available!For customers who either wish to substantially reduce the recoil of their 7.62x39 rifles, or who live in areas that require muzzle brakes (as opposed to flash suppressors), we now offer our Krebs Custom titanium...
www.krebscustom.com www.krebscustom.com

It works great! Feels like a 74 brake and works well now on the VZ 58. TOTALLY changes the recoil - must be a 50% reduction.

(I had 58 modded as a 14.5" gun by Dan Brown). So now you can have a FH, Compensator, and brake all in one device.

Just an option for just about any AKM or AK 47 in addition to the VZ 58. So...next project is the SA 85M.  I'm satisfied even if I never suppress.

[MeatAxe]

Is that 14x1 RH?

If not, it’s going require an additional
14x1 LH adapter to fit on a Vz58.

[briang2ad]

(I had 58 modded as a 14.5" gun by Dan Brown). So now you can have a FH, Compensator, and brake all in one device.

It was threaded by Dan. Already done.  I am making comments on the mounted device.

[RSR]

Pics?

So you're looking at 6oz in add'l weight and ~6 cm/2.4" in add'l length?
https://www.krebscustom.com/products/product/147-kcims-system
https://www.krebscustom.com/products/product/192-krebs-custom-short-titanium-muzzle-brake-5-45-5-56

What was the weight/weight savings in removing that 1.6" or so of barrel?  First blush weight seems heavy before accounting for that...

And guess add'l length doesn't matter though if shortening and pinning since below 16" -- was your barrel rethreaded to AK specs when shortening or was the muzzle device altered?

Also, be aware that titanium muzzle devices are known for sparking.

*FWIW, just checked and the beefy two piece Vz58 SF brakes are less than 2 1/4" in add'l length and ~4oz, but those are unobtanium these days except secondary market.

[briang2ad]

I did it mostly to of course have SOME device on the end of my OEM barreled VZ 58.  Had I gotten a LW barrel I would not have done it. While I was at it I thought I'd cut down the barrel.  The length of the device IS similar to the CZ brake, and if I am going to go with A device, I'd rather go with one that can do more than one trick.  Now that I see that the KCIMS break is effective, I feel a bit better about it - its now three in one and each dedicated to the task. 

[RSR]

Good deal. 

Pics?

So you're looking at 6oz in add'l weight and ~6 cm/2.4" in add'l length?
https://www.krebscustom.com/products/product/147-kcims-system
https://www.krebscustom.com/products/product/192-krebs-custom-short-titanium-muzzle-brake-5-45-5-56

Did you weight that barrel stub/what was the weight/weight savings in removing that 1.6" or so of barrel?  First blush weight seems heavy before accounting for that...

Was your barrel rethreaded to AK specs when shortening or was the muzzle device altered?

For anyone else who might want to go that route, and I'm genuinely curious.

Thanks!

[briang2ad]

I might post a pic - I generally don't these days for various reasons. 

Sure - it ain't light, but again I had to use SOME device and yes, this is 2 oz more than the OEM Brake.  But, to have a three in one I had to.  Actually when I take the comp OFF, it is the same weight as the OEM ~ 4oz.  I do think it is a tad longer so maybe it all is a wash.  Does it feel lighter?  Not sure - I have an optic and light now, and even without I'd have to have another...

If you put the brake on, it is a tad longer but the weight is similar because of the light weight.

Maybe Dan Brown can tell me what the cut off stub weighs.  I am guessing it is an inch.  I could measure.  You also lose the cap on the OEM barrel.  Dan did comment that he liked the device.

[RSR]

Did you keep your FSB? 

So this was primarily to have an easy suppressor mount option?  First I heard of this Krebs device was on this thread, so genuinely curious. 

Did Dan have any thoughts about adjustable gas blocks via set screws w/ suppressors that some have done here, or just run it stock?

[briang2ad]

I did this MAINLY to have a 'multiple' muzzle device - and MAYBE suppress later.

I did keep the FSB.  No reason to ditch it and there is no combo block for the VZ 58.

Dan did not pull the barrel, and maybe I wish I had him do it.  He swears by not suppressing if you don't pull the barrel to rethread - that is what he reports.

We never discussed gas, because again he does not recommend investment in a can.  I MAY do the same job with a RD combo block on my SA 85M and if I do, I will likely buy a Liberty can - the ONLY one that works with the Krebs (another limitation).

[MeatAxe]

I did this MAINLY to have a 'multiple' muzzle device - and MAYBE suppress later.

I did keep the FSB.  No reason to ditch it and there is no combo block for the VZ 58.

Dan did not pull the barrel, and maybe I wish I had him do it.  He swears by not suppressing if you don't pull the barrel to rethread - that is what he reports.

We never discussed gas, because again he does not recommend investment in a can.  I MAY do the same job with a RD combo block on my SA 85M and if I do, I will likely buy a Liberty can - the ONLY one that works with the Krebs (another limitation).

Not to derail the topic, but did you have Dan Brown do his trigger job while he had your rifle? If so, how’d it turn out?

[briang2ad]

I did not get the trigger job.  It ain't cheap, and at the time I did not KNOW as much about the trigger as I do now doing more comparison's with my AK. 

For a double tap, its not too bad.  For ANY more than that it is inferior to an AK trigger - especially ones you can drop in for $70. 

So... I wish I had.  There is a thread on here about it.

[czgunner]

I did this MAINLY to have a 'multiple' muzzle device - and MAYBE suppress later.

I did keep the FSB.  No reason to ditch it and there is no combo block for the VZ 58.

Dan did not pull the barrel, and maybe I wish I had him do it.  He swears by not suppressing if you don't pull the barrel to rethread - that is what he reports.

We never discussed gas, because again he does not recommend investment in a can.  I MAY do the same job with a RD combo block on my SA 85M and if I do, I will likely buy a Liberty can - the ONLY one that works with the Krebs (another limitation).

Not to derail the topic, but did you have Dan Brown do his trigger job while he had your rifle? If so, how’d it turn out?

I had Dan do mine. I've got some thoughts posted somewhere on here.

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