H&K MR762 A4

The HK MR762 A4 is a rugged, piston-driven 7.62 NATO rifle built for unmatched reliability and extreme durability. Featuring a cold hammer-forged barrel, ambidextrous controls, and an adjustable gas system, it’s the commercial-grade evolution of the battle-proven HK417—engineered for precision and endurance in any environment.
Manufacturer: Heckler & Koch
Availability: In stock
$4,129.99

Overview

  • Model: Heckler & Koch MR762 A4

  • Caliber: 7.62×51mm NATO / .308 Win

  • Operating System: Short-stroke gas piston system with adjustable gas regulator (ideal for suppressed or unsuppressed use)

  • Barrel: 16.5″ cold hammer-forged, cannon-grade steel barrel

    • Chrome-lined bore

    • 1:11" twist rate

    • Proprietary HK manufacturing extends barrel life to 10,000+ rounds

  • Muzzle Device: Threaded muzzle with removable compensator (5/8x24)

  • Handguard: Free-floating slim-line aluminum M-LOK handguard with integrated top Picatinny rail

  • Receiver:

    • Upper: Precision-machined from billet aluminum

    • Lower: Forged aluminum with ambidextrous mag release, bolt release, and safety

  • Stock: 9-position collapsible telescoping stock with built-in QD sling points

  • Trigger: HK two-stage match-grade trigger (approx. 4.5–5.5 lb pull)

  • Charging Handle: Ambidextrous non-reciprocating

  • Sights: Optics-ready (no iron sights included)

  • Magazine Capacity: 20-round polymer magazine (proprietary HK design)

  • Weight: Approx. 9.84 lbs (unloaded)

  • Overall Length: 35.5"–39.5" (collapsed to extended)

  • Durability Features:

    • Fully sealed and hard-anodized aluminum components

    • Lifetime barrel warranty

    • Designed for high-volume firing under extreme conditions

  • Country of Manufacture: Made in the USA and Germany

 

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