The HD night sights were specifically created to address the needs of tactical shooters. The three dot green tritium night sight set's front sight features a taller blade and an aiming point ringed in photoluminescent paint (orange) while the rear sight is outlined in black and features a wider U-shaped notch. This unique configuration increases visibility and quickens front sight acquisition - even in Transitional lighting. Additionally, the front surface of the rear sight is steeply hooked to assist in emergency one-handed slide operation. The hard duty night sights are designed to shine - even in the most demanding conditions. Professional installation recommended. - fits: HD night sight set with orange front outline; comparable to #6 front/#8 rear - for Sig Sauer .40 S&W, .45 ACP (including P938). Sig Sauer models calibrated for .40 S&W and .45 ACP including P220, P229, P240, P245, Pro233, Pro2340, Pro245, and also the P938. - finish: black
- HIGH VISIBILITY COLORED FRONT SIGHT POST: Glow-in-the-dark photoluminescent paint aids visibility and quicker target acquisition in transitional light
- SUBDUED REAR SIGHT: Angled and serrated surface to reduce glare, and black painted rings to enhance focus on front sight
- "U" NOTCH REAR SIGHT: Specifically designed rear notch enhances front sight acquisition
- TRITIUM-PHOSPHOR LAMP: Tritium-filled glass lamp provides superior illumination in no light or low light settings
- FITS SIG SAUER .40S&W and .45ACP MODELS: P220, P229, P240, P245, Pro233, Pro2340, and Pro245
- HIGH VISIBILITY COLORED FRONT SIGHT POST: Glow-in-the-dark photoluminescent paint aids visibility and quicker target acquisition in transitional light
- SUBDUED REAR SIGHT: Angled and serrated surface to reduce glare, and black painted rings to enhance focus on front sight
- "U" NOTCH REAR SIGHT: Specifically designed rear notch enhances front sight acquisition
- TRITIUM-PHOSPHOR LAMP: Tritium-filled glass lamp provides superior illumination in no light or low light settings
- FITS SIG SAUER .40S&W and .45ACP MODELS: P220, P229, P240, P245, Pro233, Pro2340, and Pro245