The Matech AR-15 Flip-Up Adj USGI BackUp Iron Rear Sight in Black delivers reliable, field-ready backward compatibility for AR-15 platforms, combining authentic USGI heritage with modern flip-up versatility to keep your rifle ready in any scenario. Built to match the AR-15s profile, this flip-up rear sight folds neatly into the boreline when not in use and snaps up with precision when you need rapid aiming, ensuring consistent zero and fast target reacquisition. Designed for rugged field use, its matte black finish resists wear and exposure, while the flip mechanism integrates smoothly with standard standard rails and housings, making installation straightforward for hunters, sport shooters, and professionals alike. The Matech sight leverages a sturdy construction and reliable windage alignment, enabling repeatable performance in dynamic environments and low-light conditions where clear sight picture is critical. Ideal for rifle enthusiasts seeking a historically faithful, purpose-built backup iron sight that enhances long-range confidence without adding unnecessary bulk, this AR-15 rear sight is a practical choice for maintaining firearm readiness and accuracy across diverse shooting disciplines.