Heckler & Koch HK MR762A1

Like its 5.56 mm counterpart, the Heckler & Koch HK MR762A1 is a direct descendant of the Heckler & Koch 416/417 series, only in a semi-automatic rifle configuration developed for civilian users.

Using the Heckler & Koch -proprietary operating system, the HK MR762A1 is gas operated and uses a piston and a solid operating “pusher” rod in place of the common gas tube normally employed in AR15/M16/M4-style weapons.

Pioneered by Heckler & Koch in the G36, HK416, and HK417; this method virtually eliminates malfunctions common to direct impingement gas systems since hot carbon fouling and waste gases do not enter the receiver area. The MR762A1 stays cleaner, reducing heat transfer to the bolt and bolt carrier, and drastically reducing wear and tear on other critical components. The service life of all parts is increased substantially.

HK MR762A1

The HK MR762A1 uses a barrel produced by Heckler & Koch’s famous cold hammer forging process. This manufacturing process uses the highest quality steel, producing a barrel that ensures superior accuracy, even after firing thousands of rounds. The MR762A1 is produced at Heckler & Koch’s American manufacturing facilities from both American and German-made components.

The HK MR762A1 uses many of the assemblies and accessories originally developed for the HK416/417 series including adjustable buttstocks, ergonomic pistol grips, mechanical sights, and the HK free-floating four-quadrant rail system/handguard. This MIL-STD-1913 “Picatinny” type rail system allows all current accessories, sights, lights, and aimers used on M4/M16-type weapons to be fitted to the MR series. The HK rail system can be removed without special tools by the user and ensures 100% return to zero when reinstalled.

Ambidextrous operating controls are standard on the MR762A1, including a convertible charging handle and an ambidextrous selector lever. The MR762A1 uses the same 10- and 20-round translucent polymer box magazines made for the HK417; a 5-round magazine is also under development. MR762A1 rifles are well-suited for a variety of applications including law enforcement tactical, police patrol, general sporting, and hunting (a 5-round magazine is under development).

We use the same grade steel used in making cannon barrels — for its rifle barrels. Using the famous HK cold hammer forging process, this advanced technology manufacturing produces a barrel that provides superior accuracy and long service life. It is also moderately “swagged” with a slightly smaller internal diameter at the muzzle end than the chamber end. This has a positive effect on bullet accuracy and velocity and the thick, heavy contour MR series barrels also contributes to its precision.

• Caliber – 7.62 x 51 mm .308 Winchester
• Stock Extended Length – 39.10 in.
• Stock Retracted Length – 35.94 in.
• Width – 3.23 in.
• Height – 8.39 in.
• Barrel Length – 16.50 in.
• Rifle Weight (with empty 20 round magazine) – 9.84 lb.
• Magazine Weight (empty 20 round magazine) – .34 lb
• Magazine Capacity – 10 or 20 rounds
• Trigger Pull – 4.5–5.6 lbf /20–25 N (two stage trigger)
• Barrel Profile – 4 lands & grooves, right-hand twist, 1 in 11.02 in.
• Sight Radius – 16.14 in.
• Sights – Variety of optional sights available
• Stock – adjustable 5 positions

Introduced in January 2012, the MR762A1’s Suggested Retail Price is $3,995.

Heckler & Koch HK MR762A1