Taking an essentially standard MR762A1 (caliber 7.62 x 51 mm NATO) semi-automatic rifle, Heckler & Koch USA turns it into a more effective precision rifle by an astute addition of the right optics and accessories. A Vortex Viper PSTII 3-15×44 FFP MRAD, HK G28 adjustable cheekpiece buttstock, and LaRue Tactical BRM-S bipod are the primary add-ons that make the MR762A1 Long Rifle Package (LRP) more than a sum of parts.
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. It is assembled in the USA using US and German-made components and uses many of the same parts and assemblies developed for the legendary HK416 and 417.
The MR762A1 uses a proprietary HK short-stroke gas piston in place of the direct-gas-impingement system found on lesser AR15-style rifles that propels exhaust gas into the upper receiver to operate the action. In the “closed” HK piston system, exhaust gasses never enter the receiver, which means the HK runs cooler, cleaner and more reliably. And when adverse conditions, like dust, sand and mud are introduced, the advantage of the HK system becomes even more drastic. That is why so many of the world’s elite military and law-enforcement customers have absolute trust in their HKs.
The MR762A1 has a cold hammer forged barrel made from the highest quality cannon-grade steel, producing a barrel that ensures superior accuracy, even after firing thousands of rounds. And while the material and cold hammer forging process themselves greatly enhance durability, HK’s processes include many additional steps not taken by other manufacturers to produce superior accuracy and service life, ensuring performance well beyond “mil-spec.”
AVAILABLE CONFIGURATIONS
ID Number | UPC Codes | Description | MSRP |
---|---|---|---|
MR762 Rifle, .762mm, Optics Ready - supplied with one magazine, M-LOK handguard, and medium contour barrel | |||
81000586 | 642230262584 | MR762, 7.62mm, Optics ready, 16.5" medium contour barrel, one 20rd magazine | 4,129 |
81000587 | 642230262591 | MR762, 7.62mm, Optics ready, 16.5" medium contour barrel, one 10rd magazine | 4,129 |
MR762 LRP (Long Rifle Package III) Rifle, 7.62mm - supplied with two magazines, M-LOK handguard, and fully assembled in hard case | |||
81000498 | 642230261655 | MR762, 7.62mm, Long Rifle Package III, Vortex Viper PSTII three 15x44 FFP MRAD, LaRue/Harris bipod, adj. G28 buttstock, Blue Force Gear sling and mount, one 20rd and one 10rd magazine | 7,249 |
81000499 | 642230261648 | MR762, 7.62mm, Long Rifle Package III, Vortex Viper PSTII three 15x44 FFP MRAD, LaRue/Harris bipod, adj. G28 buttstock, Blue Force Gear sling and mount, two 10rd magazines | 7,249 |
MR762 Spare Magazines and Accessories | |||
234708S | 642230247321 | MR762 7.62mm 20rd magazine | 59 |
234690S | 642230247314 | MR762 7.62mm 10rd magazine | 59 |
235870 | 642230249837 | MR762 14.7" quad rail handguard | 399 |
51000224 | 642230262164 | MR762 14.7" M-LOK handguard, black | 319 |
51000225 | 642230262676 | MR762 14.7" M-LOK handguard, FDE | 339 |
TECHNOLOGY

Highest Quality Steel

MEDIA
SPECS
+Dimensions
Caliber | Stock Extended Length | Stock Retracted Length | Width | Height | Barrel Length |
---|---|---|---|---|---|
7.62 x 51 mm | 40.50 in | 36.50 in. | 3.23 in. | 8.39 in. | 16.50 in. |
+Weight
Caliber | Rifle (with empty 20 round magazine) | Magazine (empty 20 round magazine) |
---|---|---|
7.62 x 51 mm | 10.42 lb. | .33 lb |
+Other Specifications
Caliber | Cycle Rate of Fire | Magazine Capacity | Modes of Fire | Sights | Stocks |
---|---|---|---|---|---|
7.62 x 51 mm | 10 or 20 rounds | 4.5–5.6 ft-lb /20–25 N (two stage trigger) | 4 lands & grooves, right twist, 1 in 280 mm | no mechanical sights, Vortex Viper PSTII 3-15x44 FFP MRAD | adjustable buttstock 5 positions, 80 mm of travel with movable cheek rest |
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