Yankee Hill 5040H QDS Folding Iron Sight Set - AR-15/AR-10

The Yankee Hill 5040H Q.D.S. Sight Set delivers precision backup sighting capabilities for AR-platform rifles when optics fail or batteries die. This folding iron sight system features quick-detach mounting and a protective hooded front post design that maintains zero shot after shot.

What Makes This Different

Unlike fixed iron sights that obstruct optic views, the 5040H set folds completely flat when not in use, preserving your primary optic's sight picture. The quick-detach system allows tool-free removal and remounting while maintaining consistent zero return. The hooded front sight protects the post from impact damage and reduces glare in bright conditions, addressing common failure points found in standard A2-style sights.

Key Features

• Quick-detach levers enable tool-free installation and removal
• Spring-loaded folding mechanism deploys sights with positive click engagement
• Hooded front sight protects post and reduces glare interference
• Black hardcoat anodized finish provides corrosion resistance and low visibility
• Co-witnesses with most red dot and holographic sights at 1/3 lower position
• Fits standard Picatinny and Weaver rail systems
• Machined aluminum construction for lightweight durability

Field testing demonstrates reliable deployment under stress conditions, with the spring-loaded mechanism functioning consistently after thousands of folding cycles. The sight picture provides clear target acquisition from 25 to 300 yards, making it suitable for tactical applications, competitive shooting, and hunting scenarios. The hardcoat anodized finish withstands harsh weather conditions and maintains its appearance through extended use.

Technical Specs

• Material: 6061-T6 aluminum construction
• Finish: Black hardcoat anodized Type III
• Mounting: Quick-detach Picatinny/Weaver compatible
• Sight radius: Approximately 20 inches on standard 16-inch barrel
• Height: Co-witnesses at lower 1/3 with most optics
• Weight: 4.2 ounces for complete set
• Country of origin: USA manufactured

Professional shooters and military personnel rely on the 5040H system because it combines the convenience of removable sights with the reliability of fixed iron backups. The investment in quality backup sights ensures your rifle remains mission-ready regardless of primary optic status.