H&K MR762 A4 7.62x51mm Pistol 13-Inch Threaded Barrel

The H&K MR762 A4 is a semi-automatic pistol chambered in 7.62x51mm. It combines a 13-inch threaded, cold-hammer-forged barrel with a short-stroke gas piston operating system, M-LOK handguard, and ambidextrous controls.

Its black configuration includes a continuous Picatinny rail interface, an enhanced ergonomic grip, an extended ambidextrous charging handle, and an adjustable gas regulator for suppressed and unsuppressed operation.

Key Specifications

• The chambering is 7.62x51mm for compatibility with the specified rifle cartridge.
• The barrel measures 13 inches and uses a medium contour profile.
• The cold-hammer-forged barrel has a 1-in-11-inch right-hand twist with four lands and grooves.
• The muzzle uses 5/8×24 threads for compatible accessories.
• The operating system is a short-stroke gas piston design.
• The bolt system uses a rotating bolt.
• The handguard provides a M-LOK interface with integral ambidextrous QD cups.
• The upper receiver and handguard provide a continuous Picatinny rail interface.
• The overall length is 31.4 inches.
• The listed weight without a magazine is 7.95 pounds.

Designed for shooters who value robust operating components and adaptable configuration options, the MR762 A4 offers a substantial 7.62x51mm platform in a compact pistol format. Its threaded barrel, modular handguard, match-profile barrel construction, and ambidextrous controls provide a versatile foundation for range use and disciplined field applications.