Like its 5.56 mm counterpart, the MR762A1 is a direct descendent of the HK416/417 series, only in a semi-automatic rifle configuration developed for civilian users.
Using the HK-proprietary operating system, the 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.
The 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 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 round translucent polymer box magazines made for the HK417. 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).
Specifications :
- Length, maximum (stock extended): 39.50 in.
- Length, minimum (stock retracted): 35.94 in.
- Overall Width: 3.23 in.
- Height: 8.39 in.
- Barrel Length: 16.50 in.
- Magazine (empty 20 round magazine): .34 lb
- Magazine capacity: 10
- Trigger Pull: 4.5–5.6 lbf /20–25 N (two stage trigger)
- Barrel Profile: 4 lands & grooves, right-hand twist, 1 in 12 in.
- Sight Radius: 16.14 in.
- Stock adjustable: 5 positions
The information below comes from our Gun Caliber Dictionary and is for
general reference only. It does not describe the specifications of this
particular item.
The 7.62X51mm NATO cartridge was adopted by the U.S. in the M14 rifle in 1957. NATO adopted it in the same year, but in other platforms. The 7.62X51mm is essentially a shortened 30-06 case, allowing a more compact action and more compact ammunition at very minor cost in performance. A side benefit--which might not have been anticipated--is improved accuracy because of the greater efficiency of the shorter case. Although 7.62X51mm has been largely supplanted by the 5.56X45mm NATO cartridge in service rifles, it is still widely used by militaries around the world and remains a primary cartridge for light and medium machineguns. Due to its exceptional accuracy it is also a very common cartridge for military sniping at ranges to a bit beyond 1000 yards. The civilian version, the 308 Winchester, was introduced in 1952 while the 7.62X51MM was still in the experimental stages.
—
Craig Boddington
