Glock 40 S&W To 357 SIG Conversion (How To) Demonstration HD

Published on December 28, 2012
Duration: 2:05

This guide details the process of converting a Glock pistol from .40 S&W to .357 SIG, as demonstrated by Mrgunsngear. It covers the barrel swap, magazine compatibility, and potential follower nuances. The instruction is concise and professional, reflecting a high level of expertise in firearms modification.

Quick Summary

Converting a Glock from .40 S&W to .357 SIG involves swapping the barrel. You'll need a .357 SIG conversion barrel, which costs around $130. Standard .40 S&W magazines can be used, but be aware that .357 SIG followers may offer better reliability. Always perform a safety check before starting.

Chapters

  1. 00:00Introduction and Shooting Demo
  2. 00:21Safety Check and Disassembly
  3. 00:36Barrel Swap and Reassembly
  4. 00:59Magazine Compatibility
  5. 01:21Technical Nuances and Cost

Frequently Asked Questions

How do I convert a Glock from .40 S&W to .357 SIG?

To convert a Glock from .40 S&W to .357 SIG, you'll need to field strip the pistol, remove the .40 S&W barrel, install a .357 SIG conversion barrel, and reassemble. Standard .40 S&W magazines can often be used, though follower differences may impact reliability.

Can I use my Glock .40 S&W magazines with .357 SIG ammunition?

Yes, standard Glock .40 S&W magazines can typically be used with .357 SIG ammunition. However, the video notes that the followers for .357 SIG are technically different and may need to be swapped for optimal feeding reliability.

What is the approximate cost of a Glock .357 SIG conversion barrel?

The cost for a Glock .357 SIG conversion barrel is approximately $130, according to the information provided in the video. This price point makes it a relatively affordable modification.

What are the key components needed for a Glock caliber conversion?

The primary component needed for a Glock caliber conversion from .40 S&W to .357 SIG is a dedicated .357 SIG conversion barrel. You will also need .357 SIG ammunition and potentially a .357 SIG magazine follower for optimal performance.

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