The Heckler & Koch MR762 A4 rifle in 7.62x51mm NATO and gray finish (brand part no. 81001311) brings HK’s semi-automatic, civilian-legal version of the select-fire HK417 to American shooters, built around HK’s proven short-stroke piston operating system in a full-power battle-rifle chambering. Heckler & Koch cuts the 16.5-inch barrel to a 1-in-11 twist and rates the rifle for a 10+1 capacity, shipping it with one 10-round magazine. The rifle runs a semi-automatic action and ships without fixed sights, leaving the top rail ready for the optic of your choice. Among AR rifles, this MR762 A4 configuration favors 7.62 shooters who want HK’s piston-driven 417 pedigree in a civilian-legal build.

Key Specifications

• The chambering is 7.62x51mm NATO.
• The capacity is 10+1 rounds.
• The rifle ships with one 10-round magazine.
• The barrel measures 16.5 inches.
• The rate of twist is 1-in-11.
• The rifle ships with no fixed sights, ready for a direct optic mount.
• The action is semi-automatic.
• Shipping weight is approximately 15.8 pounds.
• The finish is gray.

Frequently Asked Questions

Is this the same as the military HK417? It shares the 417’s piston-driven design but runs semi-automatic only, as required for civilian sale.

Does this rifle include sights? No, it ships without fixed sights so you can mount the optic of your choice directly.

What magazine does this rifle ship with? One 10-round magazine.

Buy the Heckler & Koch MR762 A4 Rifle

HK’s piston-driven 417 pedigree in a civilian-legal 7.62 build is exactly what this MR762 A4 delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.