Author Topic: CZ 85 Combat - front sight replacement question  (Read 776 times)

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Offline gunsrfun1

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CZ 85 Combat - front sight replacement question
« on: November 05, 2017, 04:40:38 PM »
Hello - I've looked around on the web and watched some videos, but I am still a bit confused regarding front sight replacement for my CZ 85 Combat. I want to replace the standard factory white dot with a Dawson Precision fiber optic.
My questions are:
1) Will the front sight dovetail have to be drilled? From the videos I have watched, it looks like the front sight base has some sort of semi-circular opening at the bottom, not really a hole, so I am a bit confused. (Plus I am not sure how such a configuration would enable a pin to hold it in place.)
2) What size (diameter) punch do I need to remove the front sight pin? (None of the videos I have watched tell you, they just say a "small" punch.)
3) Is it a roll pin or just a solid pin?
Reason I am asking all this is that I don't want to start a project that I can't finish.
Thanks

Offline afultz075

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Re: CZ 85 Combat - front sight replacement question
« Reply #1 on: November 05, 2017, 10:07:16 PM »
The Cajun Gun Works 5.5mm Fiber Optic front (made by Dawson) is what you need.

It does not need to be drilled and you can reuse the original roll pin to secure it. I believe a 5/64" roll pin punch is the proper size. You can use a nylon tipped punch to remove the old sght and install the new. It should not need fitting.

Offline gunsrfun1

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Re: CZ 85 Combat - front sight replacement question
« Reply #2 on: November 06, 2017, 08:49:07 PM »
Thanks, I contacted Dawson and they wrote back that their front sights are pre-drilled, so that is good news.
I will have to order a roll pin punch.
A couple follow-up questions, if I may:
1) Does it matter which direction I tap out the roll pin from? I wouldn't think so, but might as well ask.
2) I read somewhere that the roll pin also holds some kind of bushing in place; is this true?
« Last Edit: November 06, 2017, 08:58:26 PM by gunsrfun1 »

Offline painter

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Re: CZ 85 Combat - front sight replacement question
« Reply #3 on: November 07, 2017, 08:01:38 AM »
It doesn't matter which way you tap out the pin.

Yes, the pin also retains the barrel bushing.
I had the right to remain silent...

but not the ability.

The Guardian

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Re: CZ 85 Combat - front sight replacement question
« Reply #4 on: November 08, 2017, 02:25:56 PM »
The Sight base is pre-shaped to accept the roll pin....but, In some cases some fitting  may be required. You can tell by tapping the sight into place an looking through the roll pin hole.  It needs to be a perfectly round light hole if not, you can remove the sight and use a fine round file to remove excess material......also, the front sight usually needs some material removed from the flat base of the sight to slide into the front of the dovetail, this can be done by placing some very fine grit sandpaper, say 500 grit on a flat surface and then  just light pressing on the sight as you slide it across the paper...it’s a trial and error thing...you want a snug fit not loose.....in a sense your going to have to fit the sight some what, just how it’s suppose to work......they are NOT just a drop in item....hope this helps  ;)
« Last Edit: November 08, 2017, 10:58:17 PM by The Guardian »

 

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