Smith & Wesson M&P Shield 40 S&W to 9mm Conversion Overview (HD)

Published on February 9, 2014
Duration: 3:59

This guide details the process of converting a Smith & Wesson M&P Shield from .40 S&W to 9mm by swapping the barrel and magazine. The video, presented by Mrgunsngear, demonstrates that a 9mm barrel fits into a .40 S&W slide, though with minor play at the barrel hood. The conversion is presented as a cost-effective modification, with conversion barrels typically costing around $100.

Quick Summary

Converting a Smith & Wesson M&P Shield .40 S&W to 9mm involves swapping the barrel and magazine. A 9mm conversion barrel fits the .40 S&W slide, featuring thicker walls and a slightly narrower barrel hood. This modification typically costs around $100 and has been shown to maintain reliability and accuracy.

Chapters

  1. 00:00Introduction and Range Demonstration
  2. 00:51Slide and Barrel Comparison
  3. 01:29Technical Measurements
  4. 02:09Barrel Wall Thickness and Lockup
  5. 02:53Cost and Final Assessment

Frequently Asked Questions

Can I convert my Smith & Wesson M&P Shield .40 S&W to 9mm?

Yes, you can convert a Smith & Wesson M&P Shield .40 S&W to 9mm by simply swapping the barrel and magazine. A 9mm conversion barrel is designed to fit the .40 S&W slide, allowing for this modification.

What parts are needed for the M&P Shield .40 to 9mm conversion?

To convert your Smith & Wesson M&P Shield from .40 S&W to 9mm, you will need a 9mm conversion barrel specifically designed for the M&P Shield platform and a 9mm magazine. The original .40 S&W slide and frame are used.

How much does it cost to convert an M&P Shield .40 S&W to 9mm?

Conversion barrels for the Smith & Wesson M&P Shield .40 S&W to 9mm typically cost around $100. This makes it a relatively inexpensive way to change the caliber of your firearm.

Will a 9mm barrel fit in a .40 S&W M&P Shield slide?

Yes, a 9mm conversion barrel is designed to fit into the .40 S&W M&P Shield slide. While there might be slight lateral play at the barrel hood, the lockup remains tight and does not negatively impact accuracy.

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