The Meprolight FT Bullseye Rear Sight (brand part number 631163108) is an extremely small, low-profile optical pistol sight built on an optical illumination patent, giving shooters a reflex-sight-style aim point in the form of an illuminated dot inside a Bullseye circle. The fiber-optic and tritium combination works in all lighting conditions with no batteries needed: fiber optic gathers light for bright, daytime shooting, while premium-grade tritium delivers instant illumination at night or in low light. Installation is simple on the SIG Sauer P365’s existing dovetail, and because the FT Bullseye eliminates the need for a separate front sight, it fits most existing holsters without modification.

Key Specifications

• Fits the SIG Sauer P365.
• Combines fiber optic and tritium illumination for use in any light.
• Requires no batteries.
• Delivers an illuminated dot-and-circle Bullseye aim point.
• Finished with a black frame.
• Eliminates the need for a separate front sight.
• Sight measures 1.63 inches long, 0.71 inches wide, and 0.27 inches tall.

Frequently Asked Questions

What pistol does this fit? The SIG Sauer P365.

Does it need batteries? No, it combines fiber optic and tritium illumination that works day or night without batteries.

Do I still need a front sight? No, the FT Bullseye eliminates the need for one.

Buy the Meprolight FT Bullseye Rear Sight, Green Tritium/Fiber Optic, SIG Sauer P365

Add a fast, always-on aim point to your P365. Order it from our Meprolight lineup, part of our gun sights selection, at our Lubbock, Texas gun shop for fast, direct shipping.