FAQ 25 (Caliber Conversions)

Published on September 28, 2010
Duration: 3:09

This guide details caliber conversions for Glock firearms, focusing on the practicalities and requirements for converting a .40 S&W Glock to 9mm. It emphasizes the need for specific internal parts and magazines for reliable function. The expert also discusses the merits of dedicated .22 LR firearms versus conversion kits and advises against using conversion kits in carry guns due to potential impacts on training muscle memory.

Quick Summary

Converting a Glock from .40 S&W to 9mm requires a conversion barrel, 9mm extractor, 9mm ejector, and 9mm magazines, costing approximately $200. While feasible, purchasing a dedicated 9mm Glock like the Glock 19 might be a better investment. Using conversion kits can also negatively impact training muscle memory due to recoil differences.

Chapters

  1. 00:00Introduction to Caliber Conversions
  2. 00:37Requirements for Reliable Conversion
  3. 01:13Conversion vs. New Purchase
  4. 01:51.22 Caliber Conversions
  5. 02:30Training and Muscle Memory Concerns

Frequently Asked Questions

What parts are needed to convert a Glock from .40 S&W to 9mm?

For a reliable Glock caliber conversion from .40 S&W to 9mm, you'll need a 9mm conversion barrel, a 9mm extractor, a 9mm ejector, and dedicated 9mm magazines. Simply changing the barrel is often insufficient for consistent performance.

Is it worth converting a Glock .40 S&W to 9mm?

The cost for a reliable conversion is around $200. However, a used Glock 19 (9mm) can be found for $400-$450. Owning two dedicated firearms might be a better long-term investment than converting one.

Should I use .22 LR conversion kits in my Glock?

While .22 LR conversion kits exist, experts often recommend dedicated .22 LR firearms like the Ruger 10/22 or Smith & Wesson Model 41 for better reliability and performance. Conversion kits may not offer the same quality of experience.

How do caliber conversions affect firearm training?

Using caliber conversion kits, especially between significantly different calibers like .22 LR and .40 S&W, can negatively impact training muscle memory due to variations in recoil impulse. This can hinder consistent performance.

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