Trijicon HD Tritium Night Sight for S&W M&P Shield – 3 Dot, Yellow Outline (SA139-C-600721)

• HD tritium night sight set provides enhanced visibility in low light conditions
• Yellow outlined front sight improves daytime visibility and fast acquisition
• Tritium phosphor lamps deliver illumination without external power
• Wide U notch rear sight supports faster sight alignment and accuracy
• Designed to fit Smith and Wesson M&P Shield models
• Durable construction supports long term reliability under use

The Trijicon HD Tritium Night Sight Yellow Outline SA139-C-600721 is a pistol night sight set designed for low-light targeting on compact handguns. This Trijicon HD Tritium Night Sight model fits Smith & Wesson M&P Shield pistols in 9mm, .40, and .45 configurations.

The Trijicon HD Tritium Night Sight uses tritium-phosphor lamps with a high-visibility yellow front outline and a U-notch rear sight for clear sight alignment. Construction includes a sapphire window, aluminum protective cylinders, and silicone cushioning to support durability under recoil. The rear sight features a subdued black profile with a hooked front edge for one-handed slide manipulation. In standard configurations, the taller front blade improves sight picture acquisition. This pistol night sight set is used for concealed carry, range use, and defensive shooting where consistent visibility is required.