Draw bar machining marks?

[thomast]

I have a 908 i was looking over. I noticed that the drawbar seems to have a horizontal groove that appears to be a machining mark of some kind on the inside of the drawbar surface. At first i thought it was a crack but it is so uniform that i think it is a machining mark of some kind. Anyone else notice this. It is located where the mag insertsin the draw bar. I think i have a pic I'll post later.

 

[thomast]

The marks are similar to these ones on the inside surface of the bar

 

[mkk41]

Either a machining mark , or fixture mark. No big deal. Ya don't see it , right?

 

[thomast]

I can see the marks. Wondered if they are normal. I drew an arrow.

 

[D Rock]

The drawbar on my 3913 looks the same. I doubt that it's a problem since it works well and has for some time.

Thanks for the picture. Always good to have a reference.

Dave

 

[thomast]

Thanks for the reply Dave. That's not a pic of my draw bar but I found it online and it is similar to what I see on mine.

I didn't want to jack around with mine by trying to get a better look at it by taking the pistol apart so thought I'd post.

 

[Fastbolt]

Machining marks in that area aren't uncommon on drawbars, especially from an older production period like that pictured.