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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 and heat transfer to the bolt and bolt carrier, and wear and tear on critical components is drastically reduced; 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 will be 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 the charging handle and an ambidextrous selector lever. The MR762A1 also uses the same 10- and 20-round translucent polymer box magazines made for the HK417.
Dimensions Length, maximum (stock extended) 39.10 in. Length, minimum (stock retracted) 35.94 in. Overall Width 3.23 in. Height 8.36 in. Barrel Length 16.6 in. Weight Rifle (without magazine) 9.60 lb. Magazine (empty 10 round magazine) .24 lb Other Specifications Magazine capacity 10 rounds Trigger Pull 7.64 lb Barrel Profile 6 lands & grooves, right twist, 1 in 12 in Sight Radius 16.5 in. Sights not included -
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Action Semi-Automatic Caliber 7.62 x 51mm Capacity 10 rd Finish/Color Black Manufacturer Heckler & Koch Manufacturer History Heckler & Koch (HK) is a German defense manufacturing company that produces various small arms. Some of their products include the SA80, MP5 submachine gun, G3 automatic rifle, the G36 assault rifle, the MP7 personal defense weapon, the USP series of handguns, and the high-precision PSG1 sniper rifle. All firearms made by HK are named by a prefix and the official designation, with suffixes used for variants. HK has a history of innovation in firearms, such as the use of polymers in weapon designs and the use of an integral rail for flashlights on handguns. HK also developed modern polygonal rifling, noted for its high accuracy, increased muzzle velocity and barrel life. Not all of its technologically ambitious designs have translated into commercially successful products (for instance, the advanced but now abandoned G11 assault rifle, which fired caseless high-velocity ammunition). HK produces a whole range of small arms, from pistols to grenade launchers and machine guns. In its extensive product range, HK has used most of the operating systems for small arms: blowback operation, short-recoil, roller-delayed blowback, gas-delayed blowback, and gas operation.