Author Topic: CZ RAMI BD with Muzzle Compensator!!  (Read 1030 times)

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Offline stagesmith

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CZ RAMI BD with Muzzle Compensator!!
« on: April 21, 2017, 01:02:40 AM »
So I went and did it.
I stuck a single port compensator on my RAMI.
I didn't use the original barrel, so I can swap it back any time.
 
https://www.flickr.com/photos/131111281@N03/34013737002/in/dateposted-public/

I also added a comp to my P-06.

https://www.flickr.com/photos/131111281@N03/34040301421/in/dateposted-public/

I am a sick sick man

That is 4 total compensators I have added to my guns so far.
My EAA Witness Elite Match in 10mm.

https://www.flickr.com/photos/131111281@N03/34013735062/in/dateposted-public/

My SP-01 which is currently chambered in 357 SIG ( I really am a sick man )

https://www.flickr.com/photos/131111281@N03/34040300591/in/dateposted-public/

My RAMI BD 9mm, and my P-06 in 40 S&W

I have also added the Cajun Gun Works Defensive Carry package to the RAMI and my PCR.
The SP-01 got the Cajun Gun Works Pro Package.
My P-06 is next to get the Cajun treatment.
They are tricky to do, but I can do them much faster now that I have figured out the slave pin trick for the sear pack.

Unlike the others there is no source for longer barrels for the RAMI so I had to machine a barrel extension and silver solder it on.

If Numrich didn't have a stockpile of Witness compensators for me to work with none of this would have happened.
It's all their fault.

So the RAMI BD 9mm now has:
CGW Defensive Carry Package
TFX-Pro sights.
A mini Weaver base with a Crimson Trace Green laser
A Stainless steel single port compensator.

Next I have to figure out how to get 357 SIG to work in CZ magazines.
I can't load more than 6 rounds or they nosedive into the feed ramp.
I am working on a different angle for the mag follower.
CZ-PCR 9mm
CZ P-06 40S&W
CZ SP01 40S&W (357 SIG)
EAA Witness Elite Match 10mm
SAR K2 45ACP
CZ-2075 RAMI 9mm

Offline MetalGravy

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #1 on: April 21, 2017, 01:06:54 AM »
Do you have video of that RAMI in action?  Which barrel is on it?

Offline stagesmith

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #2 on: April 21, 2017, 02:55:55 AM »
I haven't shot it yet.
I will try it Friday evening.

I shot the P06 Tuesday with it's comp for the first time and it was lovely.

If the RAMI doesn't blow up and kill me I will post my results from the range.
Worst case scenario... the silver solder fails and the barrel extension and comp goes flying down range.

I bought a factory replacement barrel from CZ-USA to do the conversion.
I wanted to keep my original barrel with the matching serial number just in case.

The P-06 is using the original barrel from my SP-01, with the second locking lug removed and the sides thinned.
The SP-01 is using a Tactical Sport barrel.
The Witness 10mm is using a 6 inch hunter barrel.

All these are Witness compensators with 14x0.75 metric threads.
I had to dig up matching taps and dies to use them.
Thanks Amazon.

To use these compensators you need:
1. A longer barrel so you can thread about 5/8" of it beyond the slide.
2. An extended recoil spring guide which acts as the locking pin to keep the compensator screwed on.

Oh it helps to be a bit crazy, and to have gone to gunsmithing school.
CZ-PCR 9mm
CZ P-06 40S&W
CZ SP01 40S&W (357 SIG)
EAA Witness Elite Match 10mm
SAR K2 45ACP
CZ-2075 RAMI 9mm

Offline stagesmith

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #3 on: April 22, 2017, 06:09:36 PM »
I shot the RAMI on Friday at the range and it works great.
The compensator removed about 60% of the muzzle rise.
CZ-PCR 9mm
CZ P-06 40S&W
CZ SP01 40S&W (357 SIG)
EAA Witness Elite Match 10mm
SAR K2 45ACP
CZ-2075 RAMI 9mm

Offline rhart

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #4 on: April 22, 2017, 06:26:08 PM »
Cool!

Offline MetalGravy

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #5 on: April 23, 2017, 01:07:32 AM »
You used a standard Rami barrel and soldered-on the comp?

Offline copemech

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #6 on: April 23, 2017, 01:18:03 AM »
Yiu aer ya sicmon! O0

Offline hensc

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #7 on: April 23, 2017, 05:41:31 AM »
So the TFX Pro works out well for your Rami? Did you get the 75B one or another model?

Thinking about getting it for mine as well


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75B
PCR
P-09 UG
P-07
2075 Rami

Offline ThompsonCustom

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #8 on: April 23, 2017, 08:37:33 AM »
Great job thats something you dont see everyday. Could you add two popple holes to the comp to reduce the muzzle rise even more?

I have a sjc 11 port on my cz open gun and even with 175-180 power factor loads it shoots soft and flat....wish there was more options for cz comps but as of now it is all pretty much custom stuff.
www.AerospaceArms.com Current Deals:
Faxon 16" Pencil Barrel $148
21% off all magpul products code: "magpul"

Offline stagesmith

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #9 on: April 23, 2017, 12:04:23 PM »
To mount the compensator I machined an extension from 4140 steel.
I cut a shoulder on the muzzle end of the barrel and made the extension so it slid over the shoulder and was silver soldered on.

The compensator is screwed onto the extension using a metric M14x.75 thread.
The compensator is kept from unscrewing by a short extension added to the end of the recoil spring guide.
To remove it for cleaning, you just remove the recoil spring and unscrew it off the barrel.

The TFX Pro sights are another of my custom jobs.
I started with the set for the compact Kimber and then customized them.
This shows the process.

https://www.flickr.com/photos/129065511@N02/albums/72157678346024925

 I can't really add any holes to the comp without drilling into the barrel.

The only way I could take this gun further is to start with one chambered in 40 S&W and convert it o 357SIG.
CZ-PCR 9mm
CZ P-06 40S&W
CZ SP01 40S&W (357 SIG)
EAA Witness Elite Match 10mm
SAR K2 45ACP
CZ-2075 RAMI 9mm

Offline MetalGravy

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #10 on: April 29, 2017, 10:19:40 PM »
What about using a threaded barrel for a larger gun on your Rami?

http://www.czfirearms.us/index.php?topic=77972.msg564799#msg564799

Offline stagesmith

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #11 on: April 30, 2017, 09:31:57 AM »
The RAMI is unique to CZ's in that is uses a Glock style breach block instead of a browning style.
So there are no other barrels to use, and CZ has never offered an extended RAMI barrel.
You could theoretically machine one from scratch from a barrel blank, but that is too exhausting for me.

BTW I just added a compensator to my SAR K2-45 using the same process.

CZ-PCR 9mm
CZ P-06 40S&W
CZ SP01 40S&W (357 SIG)
EAA Witness Elite Match 10mm
SAR K2 45ACP
CZ-2075 RAMI 9mm

Offline ThompsonCustom

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #12 on: April 30, 2017, 11:48:54 AM »
The p07 and p09 are the breach block style like the rami but I have no idea if you could make one of those barrels work or not.
www.AerospaceArms.com Current Deals:
Faxon 16" Pencil Barrel $148
21% off all magpul products code: "magpul"

Offline stagesmith

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #13 on: April 30, 2017, 05:24:07 PM »
They would also have to have the steep angle of the breech block to the barrel.
The RAMI barrel is actually at quite a down angle when in battery.
That is why the rear sight is so much taller than the front.

I am not sure I want to spend $145 for a P-07 barrel just to compare them.
Does anybody on this list have a RAMI and a P-07?
CZ-PCR 9mm
CZ P-06 40S&W
CZ SP01 40S&W (357 SIG)
EAA Witness Elite Match 10mm
SAR K2 45ACP
CZ-2075 RAMI 9mm

Offline Tyerone

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Re: CZ RAMI BD with Muzzle Compensator!!
« Reply #14 on: April 30, 2017, 08:04:21 PM »
Sorry guys, I'm not having any love for compensating a 9mm self defense gun -- making a RAMI that much longer to tame practically nothing in recoil, but perhaps making it ear-shattering does not compute.

Looks fun though. . .