Engineered as a Complete System
The U526 is a premium 16″ 5.56 NATO lightweight combat rifle manufactured to the highest standards in the industry. Built around a hybrid-profile spiral fluted chrome-lined barrel, intermediate-length gas system, and premium Shadow Systems components throughout, it delivers the reliability, durability, and surprising accuracy expected from a duty-ready rifle. Designed from the ground up as a complete system, every major component was engineered to work together, creating a lightweight rifle with exceptional shootability, durability, and long-term performance
Hybrid-Profile 4150 CMV Barrel
Chrome-lined for durability and engineered with a hybrid profile and spiral fluting to
maximize accuracy while minimizing unnecessary weight.
Intermediate-Length Gas System
Optimized for a smoother recoil impulse, reduced component wear, and reliable cycling.
Pinned 17-4 Stainless Steel Gas Block
Military-grade pinned gas block provides exceptional long-term durability and secure
alignment.
Low-Friction Bolt Carrier Group
Premium low-friction surface engineering with C158 MPI-tested bolt. Available in TiCN
(Bronze) or ArmorLube (Black).
Elite Two-Stage Duty Trigger
Predictable take-up with a clean 3.5 lb break designed for precision and duty use.
Lightweight Low-Flex M-LOK Handguard
Rigid multi-axis mounting interface provides exceptional strength while maintaining a
lightweight profile.
Maelstrom Flash Hider
Three-prong flash hider compatible with Plan B suppressor mounting systems.
Fully Ambidextrous Controls
Ambidextrous bolt release, charging handle, and configurable safety selector with 60° or
90° throw.
Shadow Systems Furniture
Proprietary grip, foregrip, and Shadow Systems Stock designed for comfort, control, and
durability
