Making a CZ 457 Cocking Indicator

Leuchtkafer

Leuchtkafer

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A fun little evening shop project to replace that dinky little plastic cocking indicator. I had a scrap of 1/2" aluminum round stock leftover from another project that was perfect for this job. Turning to a small diameter is done with a deep cut in one shot, so that the material ahead of the cut acts as support and prevents deflection like would be experienced if attempting to cut on a small diameter.



I've been wanting to put a Digital Read Out on my lathe, but for now the analog method works pretty good too :)



Working with a collet chuck is nice because I can pull out more material to work on as I go and not worry about losing concentricity. Here I've got all the diameters cut and I'm ready to part it off.



Parting always leaves a nub so that'll need to be cleaned up



Zip across and the job is done :cool:



I've seen some commercially available cocking indicators with the flange at the end to seat on the spring and contact the firing pin, seemed like a good idea so I did the same.



Uncocked



Cocked.



I'm undecided if I should add a red dot to the end, I think I like the bare metal better. Anywho, just thought I'd share.
 
Old thread i know. i’m seriously trying to find a reasonably priced indicator. the position 7 ones are the only ones in canada that i can find and it’s around $70 with shipping… how did that indicator work out for you? any interest in making more?
 
nelsonm64 said:
Old thread i know. i’m seriously trying to find a reasonably priced indicator. the position 7 ones are the only ones in canada that i can find and it’s around $70 with shipping… how did that indicator work out for you? any interest in making more?
Click to expand...
It's a cosmetic part, nothing all that critical in it that will affect function in any way so long as the dimensions are within a pretty generous tolerance. I did mine with aluminum, and that flange on it takes the impact force from the firing pin. Well over 1000 rounds fired and I don't see any evidence of deformation on the flange, so aluminum does hold up. If it didn't have the flange I wouldn't have even worried about it, the original is plastic, after all.



I did one in stainless and heat colourized it to donate to the prize table at an ORPS match last year.



They're a straightforward job to produce, I could easily fit making one into my schedule. I've got aluminum, brass, stainless and 4140 steel in my inventory as suitable materials for this part.
 
Machine and install a red plastic tip on the new aluminum indicator... no paint to wear off and yet bright and visible.
 
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