The Ameriglo Green Tritium 2-Dot White Outlines .492" H .150" Square Notch Rear Sight is designed to fit the Smith & Wesson M& P 2.0 CORE Dovetail. Featuring green tritium inserts with white outlines, this rear sight provides excellent visibility in low-light conditions. The .492-inch height and .150-inch square notch offer a clear and precise sight picture. Ideal for self-defense and tactical applications, this rear sight ensures reliable performance and enhanced accuracy. Ameriglo Grn Trit 2-Dot White Outlines .492"H .150" Sq Notch Rear Sight for SW M& P (2.0 Core Dovetail) SW-2100R