Glock 40 S&W To 9mm Conversion (How To) In HD

Published on December 9, 2012
Duration: 8:11

This guide details how to convert a .40 S&W Glock pistol to fire 9mm ammunition, as demonstrated by Mrgunsngear. It covers the necessary internal part swaps, including the extractor, plunger, and ejector, along with the installation of a 9mm conversion barrel. The process emphasizes testing for reliable ejection patterns after the modification, crucial for safe and effective range use.

Chapters

  1. 00:00Introduction and .40 S&W Baseline
  2. 01:06Barrel-Only Conversion Test
  3. 01:38Full Internal Conversion Test
  4. 02:27Step-by-Step Conversion Tutorial
  5. 06:51Final Assessment and Reliability

Frequently Asked Questions

How do you convert a Glock .40 S&W to 9mm?

To convert a Glock .40 S&W to 9mm, you typically need to replace the barrel with a 9mm conversion barrel and swap internal components like the extractor, ejector (part #336), and the extractor depressor plunger (black for 9mm). Using 9mm magazines is also essential for reliable feeding.

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