German engineering, shortened for real work.
The HK MR762 A4 SBR delivers battle-proven 7.62 NATO performance in a compact 13" short-barreled rifle with full ambi controls and an adjustable gas system.

The Heckler & Koch MR762 A4 SBR is the civilian counterpart to HK’s combat-proven 7.62 platform—refined for accuracy, durability, and hard use. Chambered in 7.62 NATO, this 13" SBR brings serious stopping power into a compact, maneuverable package.

At the core is HK’s short-stroke gas piston system, known for reliability under adverse conditions and reduced fouling compared to direct impingement designs. The adjustable gas block allows you to tune the rifle for different ammo types and suppressed use, giving you flexibility across a wide range of setups.

The free-float M-LOK handguard provides a rigid mounting platform for lights, lasers, and accessories, while keeping weight balanced and manageable. Fully ambidextrous controls—including safety, magazine release, and bolt catch—make this rifle intuitive for any shooter.

Finished in a durable black anodized coating and built to HK’s exacting standards, the MR762 A4 is a premium rifle for those who demand performance without compromise.

A serious 7.62 platform built to run.

• Ambidextrous QD End Plate
• Adjustable Gas Regulator
• Continuous Rail Interface Between Upper Receiver and Handguard
• Extended, Ambidextrous Charging Handle, Cold Hammer-Forged Barrel
• M-LOK Interface with Ambi QD Cups