STRIPPING POLYCOAT & GUN BUILD

[Kenneth]

^^^ the same here. A nice 75 series with undercuts and a upswept beaver tail. Something that would rival my shadow


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[lowcountrySC]

Thanks for the valuable info on tools. I turn wrenches on most of my own stuff and agree about using good quality hand tools.  My next purchase was going to be a rotary tool and hearing about your B&D versus Dremel brand. I will check out the brand of punches you recommended.

[Rhino]

My Son asked for a low profile adjustable target sight. I could not locate an LPA sight made for the standard CZ 75 so instead I am fitting an LPA LPTS made for the Shadow. I had to file down the rib behind the sight dovetail so the LPA sight could bottom out and because the Shadow version does not come with a locking set screw I will fit and mount the rear sight with 620 Loctite so there will be no chance of it coming loose.


I decided to take away just a little extra so there was no chance that the blade would contact the slide in the lowest position. This should provide a little extra insurance and sight longevity.


Now filing the sight base with a 60 degree safety file until the sight will just slide in half way.


The sight is driven into place with a soft aluminum punch with the end covered in 4 coats of painter's tape to keep the aluminum off of the sight. This sight went on very tight with a perfect fit into the dove tail. You will notice that there is ample room now to bottom out the sight.

This would normally be done on a mill, did you do it all by hand with a file?

[fn1889m]

Can you share info on the FLGR mod? What guide rod and hole diameter?  Just the .40 cal GR?


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[SPO1SHADOW]

(Quote)
This would normally be done on a mill, did you do it all by hand with a file?


Yes, I did it with the flat safety file pictured and fitted the sight contour to the slide. You don't want the rear of the sight making contact with the slide. It can cause the sight to break.

[SpinyNorman]

Terrific stuff. I have read claims online that the reason the polycoat is thick is to cover up all the pits and imperfections on CZ cast frames. I never really believed them but your pictures certainly show that CZ isn't trying to hide anything. I'm looking forward to following your progress.

[Rhino]

(Quote)
This would normally be done on a mill, did you do it all by hand with a file?


Yes, I did it with the flat safety file pictured and fitted the sight contour to the slide. You don't want the rear of the sight making contact with the slide. It can cause the sight to break.

How long did that take?

[SPO1SHADOW]

Not long. If you use a good quality file and cut with it in the right direction, never dragging it backwards against the metal to dull it or lay the teeth down, it does not take long to remove a lot of metal. It took maybe 45 minutes. A lot of that time was measuring and pushing the sight in and out.

[SPO1SHADOW]

Can you share info on the FLGR mod? What guide rod and hole diameter?  Just the .40 cal GR?


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A 7/32" for a poly guide rod and 1/4" for the stainless. You can get by with a smaller hole in .40 because a lot of the barrel lug is not there compared to a 9mm barrel lug. The hole size is larger than it needs to be because you have to get the big end of the guide rod around the barrel lug on the 9mm. I have a 97B guide rod which is huge by comparison to the 9mm version, I am going to try notching the big end to facilitate getting around the barrel lug and see how that turns out. It's large enough so that you can actually feel the extra weight. I have already turned the face of the big end so it has the little sharp nub in the center like the 9 and 40 FLGR. That will be next weeks project.

[cntrydawwwg]

Very cool stuff. Always love your builds. [emoji106][emoji106]

[SPO1SHADOW]

I very much appreciate the kind words.

[diesel72]

Wow! You almost make me believe I could do this myself! I'm seriously tempted to get one of the ugly gun specials and give it a shot. Just need to figure out how to finish it.

[SPO1SHADOW]

If I can do it anyone can. I don't know about the ugly guns, they are all old model pre-B's so you are sort of limited on front sights. A lot of the guns I get have been dropped and the front sight is bent. No problem with a transitional or a B model but a bent sight on a BRNO is a $350.00 fix for an FO or any of the good front sights. For around $80.00 more you can get a gun with a changeable front sight and if it's a B just remove the firing pin block and lifter to get the good trigger and reset. Easy to strip too. Go for it!!!
I think rust bluing is probably the easiest and most durable other than the spray type finishes..

[Rhino]

I agree with the rust blue, it is tough.

[diesel72]

If I can do it anyone can. I don't know about the ugly guns, they are all old model pre-B's so you are sort of limited on front sights. A lot of the guns I get have been dropped and the front sight is bent. No problem with a transitional or a B model but a bent sight on a BRNO is a $350.00 fix for an FO or any of the good front sights. For around $80.0 more you can get a gun with a changeable front sight and if it's a B just remove the firing pin block and lifter to get the good trigger and reset. Easy to strip too. Go for it!!!
I think rust bluing is probably the easiest and most durable other than the spray type finishes..

Good point about the ugly gun specials. I'll have to wait for the right deal on something else.

(edit) Actually, I'm seeing plenty of good candidates on gunbroker with replaceable sights, in decent enough condition.