These adjustable sights replicate the original Bo-Mar adjustable sights, which are no longer in production. Engineered to endure the impact of service ammunition, they feature robust and reliable characteristics tailored to satisfy competitive pistol shooters. They are fully compatible with our #1624 front sight. We recommend that installation be performed by a qualified gunsmith. These sights are available exclusively in blue. Be cautious of inferior imitations offered at lower prices. Our sights are of the highest quality and precision, with the tightest tolerances available. They are fully adjustable for both windage and elevation and are engraved with Ed Brown on the side. The notch width measures approximately 0.115 inches and the dovetail is 60 degree x 0.359 inches. An exceptional sight picture is characterized by a clear, precise alignment of the front and rear sights with the target, ensuring optimal accuracy and focus