Smith & Wesson M&P Sport II Handguards vs. Magpul D-60 Magazine Dump (HD)

Published on December 11, 2016
Duration: 4:36

This video tests the durability of the Smith & Wesson M&P Sport II's polymer handguard under extreme heat conditions by performing a 60-round magazine dump using a Magpul D-60 drum. The test reveals some melting and deformation of the handguard, indicating its limitations under sustained rapid fire, though the rifle remained functional. The gas tube also showed discoloration due to the intense heat.

Quick Summary

The polymer handguard on the Smith & Wesson M&P Sport II can melt under extreme heat, as demonstrated by a 60-round magazine dump with a Magpul D-60. While the handguard showed signs of melting and deformation, the rifle remained functional, indicating its core components are durable.

Chapters

  1. 00:28Initial Concerns: M&P Sport II Handguard
  2. 00:50Defining 'Normal Use' for Testing
  3. 01:18Introducing the Magpul D-60 Drum
  4. 01:47Heat Test Observations Begin
  5. 02:13Gas Tube Discoloration Noted
  6. 02:46Visible Melting and Burnt Plastic
  7. 03:08Handguard Damage Assessment
  8. 03:33Rifle Functionality After Test

Frequently Asked Questions

Will the Smith & Wesson M&P Sport II handguard melt under heavy use?

Yes, the polymer handguard on the Smith & Wesson M&P Sport II can melt under extreme heat conditions, such as a 60-round magazine dump. While it may not fail immediately, visible melting and deformation were observed in testing.

What is the Magpul D-60 used for in this test?

The Magpul D-60 is a 60-round drum magazine used to simulate a high-stress, sustained firing scenario. This allows for testing the heat tolerance of the M&P Sport II's handguard by dumping all 60 rounds consecutively.

What are the signs of heat damage on the M&P Sport II handguard?

Signs of heat damage include visible melting of the polymer material, deformation of the handguard's shape, and a distinct smell of burnt plastic. The gas tube may also change color due to extreme heat exposure.

Can the M&P Sport II still function after its handguard melts?

In this test, the Smith & Wesson M&P Sport II remained functional and held the bolt open even after its polymer handguard showed signs of melting from a 60-round dump. This suggests the core firearm mechanics are robust.

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