A direct descendant of the HK416, the HK MR556 for sale offers impeccable durability, precision, and battle proven reliability. This rifle utilizes a "closed" short stroke gas piston system resulting in a firearm that performs cleaner, cooler, and more reliably, making direct gas impingement system malfunctions a thing of the past.

It offers the battlefield-proven reliability, durability and precision you would expect from a rifle that bears the name Heckler & Koch. The MR556A1 is assembled in the USA using US and German-made components and uses many of the same parts and assemblies developed for the HK416.

Apr 5, 2017 · MR556 barrels are profiled differently (heavier) and not chrome lined. MR556 gas blocks are not vented and none have sling loops. HK416 A3 10" gas blocks are vented and have sling loops (all until the A5 had the loops).

Apr 4, 2023 · HK USA has no drive and motivation to improve the MR line. In fact the MR556 has only gotten worse over the years. They started as coming with German quad rails, German mags, German V4 grips, and German iron sights. Now we get no sights at all, an American made mlok rail, and a Magpul K grip.

Heckler and Koch’s MR556 Semi-Automatic Rifle is a direct descendant of the HK416. Developed by HK as a premium level commercial/civilian firearm with match rifle capability, the MR556 is an improvement over conventional AR-type carbines and rifles.

Oct 8, 2019 · I'm really curious to why HK is making the MR223 A3 version for EU countries but refuses to make the MR556 A3 version for the US market? I know they have been making the A3 version for EU for a few years I believe.

HK MR556 5.56mm NATO 16.5in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds - A direct descendant of the HK416, the MR556A1 is a semi-automatic rifle configuration with match rifle capability developed for civilian users.

The MR556A1 is an improved version of the MR556 with a free floating modular rail system, Picatinny rail, and interchangeable receiver assemblies. The MR556A1 is the civilian version of the HK416, a fully automatic weapon used by Navy Seals still today.

Compare prices for in stock Heckler & Koch Inc MR556 guns from more than 100 stores online on gun.deals.