Remove 10round Indent on Sig mags

[sd408]

How long did this **** take you? I did this to 3 of my CZ mags and it took forever with a 1/8" bit and a 1/4" bit.

[Ubermcoupe]

I dunno... might be time to rebuild that

[romukom]

You can try this:
1 drill a hole big enough for a 10-32 hex screw.
2: insert a nut and washer inside the magazine.
3 screw in the hex screw with a spacer like a 1/4" socket
4. Tight the screw and nut. The nut should pull the indentation out. Think about auto body repair when pulling most of the dents with a pull hammer.

Hopefully this helps.

[coy80176]

Nice work ^^^

It warms my heart to see freedom in action...

Get'r done!!

[SkyHawk]

Use a Maglula, you can get that 17th round in!

[2Aallday]

That hole is very ugly. Really should have been nicely deburred.

[1320Fastback]

If the ban gets reinstated, that's nothing that a little duct tape can't fix.

It is legal no?

It came into his "possession" when it was legal to do so.

[Vagabond]

Ditto for the p320 subcompact 9mm mags. Drilling them out made them 11, not 12 rounders. I wonder if punching the dimple in squeezes the rest of the mag together just a bit.


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[AregularGuy]

Fyi, the Mecgar +2 sig p226 extensions fit the p320 mags.

[*bryce*]

Ditto for the p320 subcompact 9mm mags. Drilling them out made them 11, not 12 rounders. I wonder if punching the dimple in squeezes the rest of the mag together just a bit.


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I ended up getting a Maglula for ~$20 and was able to get my last round in.

I think the springs just aren't used to this much freedom. My drilled out mags are still sitting fully loaded to hopefully loosen it up. The Maglula is highly recommended.

[Vagabond]

I ended up getting a Maglula for ~$20 and was able to get my last round in.

I think the springs just aren't used to this much freedom. My drilled out mags are still sitting fully loaded to hopefully loosen it up. The Maglula is highly recommended.

I have a maglula and that didn't help with the subcompact mags. I also swapped the spring and follower from a true 12 round SC mag and it still only took 11. I'll look back at them someday. All that matters is they were converted to >10, can legally try and make them 12 later.

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[Vagabond]

Fyi, the Mecgar +2 sig p226 extensions fit the p320 mags.

Nice

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[cowboy777]

I’m assuming you drilled out the indent on both sides?