Hk 416 (MR223A3) - Possibly the Best AR15 in the World: Gun of the Week #12

Published on September 13, 2019
Duration: 10:59

The HK MR223A3, the civilian variant of the HK 416 A5, is presented as a potentially superior AR-15 platform. Key features include a hard chrome barrel, fully ambidextrous controls, a unique safety mechanism, and a proprietary HKey handguard. The review also touches on Canadian firearm regulations and optics choices like the Elcan SpecterDR.

Quick Summary

The HK MR223A3, a civilian variant of the HK 416 A5, offers a hard chrome barrel, fully ambidextrous controls, and a unique safety mechanism. It's marked .223 Remington but fires 5.56 NATO, featuring a proprietary HKey handguard and B&T muzzle accessories.

Chapters

  1. 00:00Introduction to HK MR223A3
  2. 00:52Caliber and Regional Availability
  3. 01:48Stock and Buffer Tube Assembly
  4. 02:21Grip and Ambidextrous Controls
  5. 03:30Safety and Trigger Mechanism
  6. 04:20Bolt Catch and Release System
  7. 06:40Magazines and Mag Well
  8. 07:45Handguard and Sights
  9. 08:15Muzzle Device and Blast Deflector
  10. 09:03HK GLM Grenade Launcher
  11. 10:13Optics Selection

Frequently Asked Questions

What makes the HK MR223A3 different from a standard AR-15?

The HK MR223A3, a civilian version of the HK 416 A5, features a hard chrome barrel, fully ambidextrous controls, a unique safety mechanism that can be engaged with the hammer down, and a proprietary HKey handguard system, setting it apart from typical AR-15 designs.

Is the HK MR223A3 chambered in 5.56 NATO?

While marked as .223 Remington, the HK MR223A3 is fully capable of firing 5.56x45mm NATO ammunition. This is common for European HK models, distinguishing them from some US market variants.

What are the key ergonomic features of the HK MR223A3?

The MR223A3 boasts fully ambidextrous controls, including the magazine release and an oversized bolt release paddle. It also features a slimline stock and a reinforced castle nut designed for durability.

What type of sights and muzzle device are on the HK MR223A3?

The rifle is equipped with high-quality, flip-up diopter sights. It also features a B&T two-chamber brake and blast deflector, utilizing a European M15x1 metric thread pitch on the barrel.

Related News

All News →

More Reviews Videos You Might Like

More from Arm&Gun

View all →