S&W M&P15 Magpul: FULL REVIEW (Thin Barrel AR-15)

Published on February 18, 2015
Duration: 26:26

This guide details the process of modifying a Smith & Wesson M&P15 Magpul Edition, focusing on replacing the standard front sight base with a JP Enterprises adjustable gas block and installing a Troy free-float handguard. It also covers the setup of Magpul furniture, optics, and sights. The review emphasizes the 'Philosophy of Use' for lightweight AR-15 platforms in realistic scenarios.

Quick Summary

The Smith & Wesson M&P15 Magpul Edition features a 16-inch, thin-profile 4150 CMV steel barrel with a 1:8 twist, 5R rifling, and a mid-length gas system. It demonstrated sub-MOA accuracy with premium loads and 100% reliability over 500+ rounds, even suppressed, challenging the notion that thin barrels are unsuitable for demanding roles.

Chapters

  1. 00:00Introduction and Branded AR-15s
  2. 03:15S&W M&P15 Magpul Edition Overview
  3. 06:40Philosophy of Use (POU)
  4. 08:53Barrel Specifications
  5. 10:51Muzzle Device and Modifications
  6. 13:34Receiver and Trigger
  7. 15:33Optics and Furniture
  8. 19:39Accuracy Testing
  9. 23:37Reliability and Suppressor Use

Frequently Asked Questions

What are the key barrel specifications for the Smith & Wesson M&P15 Magpul Edition?

The S&W M&P15 Magpul Edition features a 16-inch, thin-profile barrel made from 4150 CMV steel. It includes a 1:8 twist rate with 5R rifling and a corrosion-resistant Melonite finish, utilizing a mid-length gas system for smoother operation.

How accurate is the S&W M&P15 Magpul Edition with its thin barrel?

Despite its thin barrel, the M&P15 Magpul Edition demonstrated impressive accuracy, achieving sub-MOA groups at 100 yards with premium ammunition like 77gr Tac Ammo and Gold Medal Match, even under challenging conditions.

What modifications were made to the S&W M&P15 Magpul Edition in the review?

The reviewer modified the rifle by replacing the standard front sight base with a JP Enterprises adjustable gas block and installing a Troy free-float handguard, enhancing its modularity and tuning capabilities.

What is the 'Philosophy of Use' for the S&W M&P15 Magpul Edition discussed in the review?

The 'Philosophy of Use' for this rifle is as a lightweight testbed for thin barrels, intended to prove their viability for realistic scenarios such as Close Quarters Battle (CQB), patrol duties, and active shooter response within 0-200 yards.

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