semi-auto magazines: polishing the inner feed lips?

mgo · Feb 21, 2010

- Just an idea that popped into my head -

Since the top round in a fully loaded magazine will sometimes tip downward and not feed well if the magazine spring is overly strong, why not polish (no metal removed) the inner feed lips for easier sliding of the round up the ramp?

Say, a 800 grit abrasive...

Anybody try this?

tpd223 · Feb 21, 2010

All of the magazines I have ever had from S&W were rather well polished to begin with. Never had an issue with fails-to-feed with any of my 3rd gen S&W 9mms.

jppezz23 · Feb 21, 2010

Sounds like it is an unneeded procedure.

mgo · Feb 21, 2010

mgo said:
- Just an idea that popped into my head -

Since the top round in a fully loaded magazine will sometimes tip downward and not feed well if the magazine spring is overly strong, why not polish (no metal removed) the inner feed lips for easier sliding of the round up the ramp?

Say, a 800 grit abrasive...

Anybody try this?

...Answering my own question...

Taking one of those old magazines apart was a horrible job! The base plate was amazingly stubborn and it was a major battle to get it off. Perhaps it was warped a little or something. I even used some light oil to make the job easier..but NNOOOO!

Then the next fun part was wrestling the base plate back on. Yikes!

Should I ever try this lip polishing idea again, I will just press the magazine follower down and stick something in thru the witness holes to hold it down and away from the top of the magazine.

In conclusion it sounds like a difficult solution for a non existent problem, to paraphrase the late Jeff Cooper.

5906fan · Feb 21, 2010

I have done that with some aftermarket mags - ProMag IIRC they had some roughness that cleaned up with a very fine stone and a little time on a polishing wheel loaded with s/s polish. one MecGar mag needed the same but the factory s/s mags I've used were good to go.
the ProMags were improved quite a lot after the procedure. these were 20' and 30's that I use in my Marlin Camp 9mm.

semi-auto magazines: polishing the inner feed lips?

mgo

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tpd223

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jppezz23

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mgo

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5906fan

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