Shadow Systems U526 5.56 NATO 16-Inch Rifle

The Shadow Systems U526 is a semi-automatic rifle chambered in 5.56 NATO/.223 Rem with a 16-inch hybrid-profile barrel and intermediate gas system. Its complete-system configuration combines an M-LOK interface, two-stage duty trigger, pinned gas block, and Maelstrom flash hider for a practical, adaptable setup.

Key Specifications

• The action is semi-automatic for self-loading operation.
• The chambering is 5.56 NATO/.223 Rem.
• The barrel measures 16 inches.
• The barrel uses a hybrid profile 4150 CMV construction with a chrome-lined bore.
• The rifling twist rate is 1:7.
• The rifle uses an intermediate gas system.
• The trigger is a two-stage duty trigger.
• The handguard provides an M-LOK mounting interface.
• The muzzle device is a Maelstrom flash hider.
• The rifle includes two magazines.

With its 16-inch barrel, configurable M-LOK platform, and carefully specified operating system, the U526 offers a straightforward foundation for range use and equipment setups that benefit from a balanced, hard-use rifle configuration.