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10/28/2014 1:50:57 PM EDT
I have read from several here that a automatic center punch was used to re-stake gas keys.

There are quite a few out there for sale in a wide price range.  For the people here that actually have used one which really worked, which make/model did you use?
10/28/2014 2:02:52 PM EDT
[#1]
I've used a $8 automatic center punch from Lowes to stake the lock nut/receiver end plate on a collapsible stock with great results several times.  But I'm not sure an automatic center punch would work well for staking a gas key because of what I assume is a harder metal.
10/28/2014 2:56:06 PM EDT
[#2]
You could use a cold hammer forged chisel.  I have used a crappy flat head screwdriver once.
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