HK MR762 A4 | 7.62x51mm | 16.5″ | 10+1 | 81000830

The Heckler & Koch MR762 A4 is a commercial semi-automatic modern sporting rifle built around HK’s short-stroke gas piston system. This configuration reduces carbon fouling in the action and features an adjustable gas regulator for tuned suppressed or unsuppressed operation. The rifle ships with a 16.5″ threaded barrel, M-LOK slimline handguard, ambidextrous controls and a black synthetic 6-position stock.

For an optic under $1,000 that pairs well with this platform, consider a low-power variable scope such as the Vortex Viper PST 1-6×24 for close-to-medium engagement flexibility and reliable glass quality.

Typical applications include precision shooting at extended ranges and large-game hunting where .308/7.62×51 performance is appropriate.

Product Specifications

• The UPC is 642230269460.
• The manufacturer is Heckler & Koch / H&K.
• The model is MR762 A4.
• The caliber is .308 / 7.62 NATO.
• The action type is Semi-Automatic.
• The barrel length is 16.5 inches.
• The overall length is 39.5 inches.
• The weight is 9.84 lbs..
• The magazine capacity is 10 rounds.
• The magazine is detachable.
• The barrel type is threaded.
• The handguard style is SLIMLINE M-LOK.
• The stock material/type is Black synthetic / polymer, 6-position.
• The rate of twist is 1:11″.
• The NFA thread pattern is 5/8×24.

The MR762 A4 brings HK’s piston-driven design and ambidextrous controls into a commercial modern sporting rifle package, delivering a durable platform suited to precision work and field use. The combination of a threaded 16.5″ barrel, slimline M-LOK handguard and a 6-position synthetic stock provides a versatile baseline for optics, suppressors and aftermarket accessories without sacrificing the reliability inherent to HK’s design.

Owners and reviewers frequently praise the MR762 A4 for its reliable short-stroke gas piston system and for its robust ambidextrous controls and overall build quality.