H&K MR556A1 Competition Model

by
posted on January 22, 2015
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **

With a few tweaks to its basic MR556A1—the semi-automatic model of H&K's legendary HK416 carbine—Heckler & Koch has created an ideal competition gun. The Competition Model, shown in the range footage here with American Rifleman Editor-in-Chief Mark Keefe, is equipped with a new, extended 14-inch hand guard, which is produced by HK’s Newington, N.H., manufacturing facility. A Magpul CTR buttstock replaces the standard stock and an advanced compensator developed by Operators Suppressor Systems replaces the conventional MR flash hider. For more, visit HK-USA.com

Latest

013 Rrvstr Trio End 01
013 Rrvstr Trio End 01

What Should Ruger’s Future Revolvers Look Like?

Ruger’s revolvers would benefit from a few updates if the company ever decides to bring them back into production.

Savage Arms Expands Model 334 Line with New Chamberings & Compact Models

Initially introduced in 2023, the Savage Model 334 bolt-action lineup has been an affordable, no-frills platform for hunters and shooters, and in 2026, Savage has expanded the line with new chamberings and compact models.

Gun of the Week: Marlin Firearms Model 1894 Trapper 10 mm

One of the latest Marlin lever-action rifles on the market is the Model 1894 Trapper, and the company now offers the platform in a 10 mm Auto chambering.

Scout Rifle World Shoot Recap

There’s lot to learn about the Scout Rifle, and we tested one at the inaugural Scout Rifle World Shoot.

The Armed Citizen® Nov. 6, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

The Six-Hour Gun: Saving a Family Heirloom

Simple math would have told anyone it wasn't worth fixing a $150 revolver. But to one family, this simple, common revolver meant everything.

Interests



Get the best of American Rifleman delivered to your inbox.