The Heckler & Koch MR556 A4 with EOTech HHS G45 package brings together HK’s proven short-stroke gas piston AR pistol with a factory-mounted holographic sight and magnifier for fast, precise shooting. Built around an 11" barrel chambered in 5.56 NATO and a full-length M-LOK handguard, this configuration adds a Hesychia 556UK suppressor, Modlite PLHv2 weapon light, Unity Tactical mounts, and an SB Tactical SBA6 adjustable brace to create a refined, ready-to-run system.

This MR556 A4 pistol is well suited for range use, training, and general-purpose defensive roles where reliability and controllability matter. The included suppressor and premium white light support low-light shooting, while the EOTech HHS G45 optic combo offers rapid target acquisition with the option for magnified aiming. Together with HK’s reputation for meticulous engineering and durable construction, this package delivers a cohesive, high-quality shooting platform.

Key Features:

• Manufacturer: Heckler & Koch
• Model: MR556 A4 Pistol w/ EOTech HHS G45
• Caliber: 5.56 NATO
• Action: Semi-Automatic
• Barrel Length: 11"
• Capacity: 30 RDs
• Optic Footprint: EOTech HHS G45 holographic sight and magnifier
• Unique Features: Short-stroke gas piston system, Hesychia 556UK suppressor, Modlite PLHv2 light, SB Tactical SBA6 brace, M-LOK handguard