The Sig Sauer M400 Tread Front and Rear Sight Set is a must-have accessory for any M400 Tread rifle owner. These adjustable flip-up sights are built exclusively for the Tread Picatinny rail, providing quick deployment and reliable performance. The rear sight features a dual aperture for precise day and night shooting, along with a windage adjustment screw. The front sight is adjustable for elevation and functions just like a classic military sight. The low-profile design ensures that the sights stay out of the way when not in use, while the durable construction guarantees long-lasting performance. This sight set includes a Picatinny rail with a mounting screw and nut for easy installation. Sig Sauer M400 Tread Front and Rear Sight Set KIT-TRD-SIGHTS