XS Sights Tritium Stripe AR Mil-Spec Front Sight – AR-15/M16/M4

The XS Sights Tritium Stripe AR Mil-Spec front sight delivers fast target acquisition in any light condition with a self-luminous tritium insert. Designed as a drop-in replacement for standard A2-style front sight posts, the vertical tritium stripe provides a clear, bright aiming reference from dusk to dawn without batteries or external charging. Ideal for defensive carbines, duty rifles, and backup iron sights on optics-equipped ARs.

Fits standard AR-15, M16, and M4 front sight bases with mil-spec dimensions. Installs using the existing sight post detent and requires a front sight adjustment tool. The tritium element is protected by a durable housing that withstands hard use and recoil. Compatible with any AR-pattern rifle using a standard A2-style front sight base.

• Type: Tritium front sight post
• Illumination: Self-luminous tritium stripe
• Compatibility: AR-15, M16, M4 mil-spec front sight bases
• Installation: Drop-in replacement for A2 sight post
• Material: Steel housing with tritium insert
• Lifespan: 12-year tritium half-life
• Adjustment: Standard elevation adjustments via sight post tool