Durable Construction: Built to endure the rigors of professional use Versatile Compatibility: Compatible with both 1.5 and 1.93 optic heights Dual Functionality: Perfect as primary sights or as a reliable backup Enhanced Low-Light Visibility: Premium Swiss tritium ensures clarity in low-light and nighttime conditions Extended Warranty: Enjoy a 12-year warranty on tritium illumination for added peace of mind ntroducing our all-metal FABS"tritium-enhanced, self-illuminated front and rear folding adjustable backup sights. Designed for quick deployment, these sights cater to professional shooters utilizing 1.93 optics.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Stockable: N Country Of Origin: IL