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Q&A for Mec-Gar Plus4 Sig P229 Pro Polymer Adapter Set — 5 Questions & 5 Answers

Name Mec-Gar Plus4 Sig P229 Pro Polymer Adapter Set
$17.49 $12.99 Save 26%
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Q
RaceRed, member, from FL, United States, asked on February 20, 2022

Does this fit the P229 Legion?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on June 06, 2023

The Mec-Gar Plus4 Sig P229 Pro Polymer Adapter Set will work with a P229 Legion.

4 of 4 found the following answer helpful.
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Q
J, guest, from TN, United States, asked on November 26, 2020

Does this work for either 9mm or 40cal P229?

Expert Answer
A
Answered by Jeremy, Gear Expert, from IL, United States, on November 11, 2021

Yes it does.

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Q
Jon Terry, member, from MO, United States, asked on October 11, 2020

Will these work on the factory 15 rd wig mags?

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A
Answered by Jeremy, Gear Expert, from IL, United States, on November 11, 2021

Yes it will.

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Q
Jack, member, from TX, United States, asked on June 21, 2020

Will it fit west german sig p226 9mm 15 round mag

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A
Answered by Jeremy, Gear Expert, from IL, United States, on November 11, 2021

That magazine is not listed as compatible by the manufacturer.

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Q
Chris, guest, from KY, United States, asked on May 30, 2020

Does this adapter add 4 rounds of .40/.357, or just 4 rounds of 9mm, and if so how many rounds of 40/357 will it add?

Expert Answer
A
Answered by Jeremy, Gear Expert, from IL, United States, on November 11, 2021

Here is a chart from the manufacturer regarding compatibility and capacity.

https://mec-gar.com/shop/upgrade-parts/pads/plus-4-adapter-set/

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Last updated 2025-11-12 UTC.