---
title: "Smith & Wesson M&P15 Sport III 5.56 NATO Rifle"
url: "https://ghostgunkits.shop/product/smith-wesson-mp15-sport-iii-5-56-nato-rifle/"
language: "en-US"
updated: "2026-05-10T08:13:39+00:00"
---

# Smith & Wesson M&P15 Sport III 5.56 NATO Rifle

> The Smith & Wesson M&P15 Sport III is a semi-automatic modern sporting rifle chambered in 5.56 NATO/.223 Rem. It features a 16-inch threaded barrel, free-floating M-LOK handguard, collapsible stock, and modular platform designed for range use, training, and accessory customization.

# [Smith & Wesson M&P15 Sport III 5.56 NATO |16″Barrel, 30rds](https://ghostgunkits.shop/)

## Description

The Smith & Wesson M&P15 Sport III is a modern sporting rifle built for range use, training, and accessory customization. Chambered in 5.56 NATO/.223 Rem, it pairs a 16-inch threaded barrel and A2 flash suppressor with a free-floating 15-inch M-LOK handguard for modularity. The rifle ships with a single 30-round magazine and a six-position collapsible stock for adaptable ergonomics. Constructed on a 7075-T6 aluminum receiver with a 4140 steel Armornite-finished barrel and 1:8 5R rifling, it balances durability and shootability.

## Key Specifications of the [Smith & Wesson M&P15 Sport III 5.56 NATO Rifle](https://ghostgunkits.shop/product-category/buy-ghost-ar-rifles/)

- The caliber is **5.56 NATO / .223 Rem**.
- The barrel measures **16 inches** and features a threaded muzzle.
- The magazine capacity is **30 rounds** and one magazine is included.
- The action is **gas-operated semi-automatic**.
- The rifle weighs approximately **6.5 lbs**.
- The handguard is a **free-floating 15-inch M-LOK** design.
- The rifling is **1:8 twist with 5R rifling**.
- The receiver is made from **7075-T6 aluminum**.
- The barrel material and finish are [**4140 steel with Armornite finish**](http://cebelas.com).
- The stock is a **6-position collapsible** configuration.

![Smith & Wesson M&P15 Sport III 5.56 NATO 16″ 30rd for sale online](https://ghostgunkits.shop/wp-content/uploads/2026/05/photo_4900400987609173120_w-249x300.jpg)

With a focus on modularity and reliable construction, the M&P15 Sport III provides a ready platform for optics, accessories, and personalized setups. Its combination of a mid-length gas system, free-floating M-LOK rail and threaded 16-inch barrel makes it practical for range sessions and competitive or training applications where a configurable, rugged modern sporting rifle is required.

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