Heckler & Koch MR762 A4 7.62mm SBR 13" Barrel - 20 Rd

Heckler & Koch MR762 A4 7.62mm SBR 13" Barrel - 20 Rd

The Heckler & Koch MR762 A4 Semi-Automatic SBR represents the pinnacle of modern 7.62 NATO rifle engineering, delivering elite-level reliability, precision, and durability in a compact short-barreled configuration. Built for demanding users who require uncompromising performance, this platform combines battle-proven HK piston-driven technology with advanced ergonomics and modular design to create a rifle capable of sustained, hard use without sacrificing accuracy.

Chambered in 7.62×51 NATO, the MR762 A4 features a 13" cold hammer-forged threaded barrel designed for exceptional longevity and consistent ballistic performance. Its short-stroke gas piston system dramatically reduces fouling and heat transfer into the receiver, ensuring cleaner operation, extended service life, and reduced maintenance requirements even under high round counts.

With an adjustable gas regulator, the system can be precisely tuned for suppressed or unsuppressed firing conditions, giving the shooter full control over recoil impulse and cycling behavior. The M-LOK free-float handguard, continuous rail interface, and ambidextrous controls provide maximum adaptability, making this platform equally effective in tactical, defensive, and precision roles.

7.62 NATO Hard-Hitting Performance
Chambered in .308/7.62×51 NATO for superior range, penetration, and terminal effectiveness in demanding environments.

13" Cold Hammer-Forged Barrel
Precision-engineered barrel delivers long service life, consistent accuracy, and rugged durability.

Short-Stroke Gas Piston System
Keeps carbon fouling out of the receiver for cleaner operation, reduced wear, and improved reliability.

Adjustable Gas Regulator
Fine-tunes gas system for optimal performance with or without suppressors.

Ambidextrous Controls
Fully ambidextrous charging handle and QD end plate enhance usability for both left- and right-handed shooters.

M-LOK Free-Float Handguard
Modular rail system supports accessories while maintaining barrel harmonics for improved accuracy.

Continuous Top Rail Interface
Seamless integration between receiver and handguard for stable optic mounting and enhanced versatility.

Enhanced Durability Construction
Built to withstand extreme operational conditions while maintaining precision and reliability.

Specifications

• Caliber: 7.62×51 NATO (.308 Winchester)
• Action: Semi-Automatic
• Barrel Length: 13 inches
• Barrel Type: Cold Hammer-Forged, Threaded
• Thread Pitch: 5/8x24
• Gas System: Short-Stroke Gas Piston
• Gas Adjustment: Adjustable Gas Regulator
• Receiver Finish: Anodized Black
• Handguard: M-LOK Free-Float
• Rail System: Continuous Upper Receiver / Handguard Interface
• Controls: Ambidextrous (Charging Handle, QD End Plate)
• Magazine Capacity: 20 Rounds
• Magazine Included: 1 Magazine
• Color: Black