The Heckler & Koch MR556 A4 w/ SBA6 Brace, 5.56 NATO, 11.00" Barrel, 10 RDs, Black is a compact AR-style pistol built around HK’s proven MR556 platform. Featuring an 11-inch barrel with a flash hider and a free-floating M-LOK handguard, this configuration delivers excellent balance and controllable recoil in a shortened package. The SBA6 brace at the rear provides additional stability while maintaining a lightweight, maneuverable profile, and the HK-marked bolt carrier and receiver showcase the brand’s clean machining and attention to detail.

This MR556 A4 pistol is well suited for range use, training, and general recreational shooting where a shorter, easy-handling firearm is preferred. The 5.56 NATO chambering offers broad ammunition compatibility, and the 10-round magazine keeps the footprint slim while remaining practical for most shooting environments. With its ergonomic HK grip, full-length top rail for optics, and modern modular handguard, this model is ready to be configured to the shooter’s preferences. It reflects Heckler & Koch’s longstanding reputation for precision engineering, durability, and thoughtful design.

Key Features:

• Manufacturer: Heckler & Koch
• Model: MR556 A4 w/ SBA6 Brace
• Caliber: 5.56 NATO
• Condition: New
• Action: Semi-Automatic
• Barrel Length: 11.00"
• Capacity: 10
• Threaded Barrel: Yes