Quick Setup: Comes with the QK01 Quick Knob, enabling swift and easy adjustments. | Compatibility: Easily attaches to standard 1913 Picatinny rails, making it suitable for a wide range of firearms. | Sleek Finish: Available exclusively in a sophisticated black finish to complement your equipment. | Durable Construction: Meticulously machined from 6061-T6 aluminum, ensuring longevity and resistance against wear and tear. Plus, with Mil-Spec Type III hard anodizing, it's not just tough-it's military-grade tough.