TRIJICON NS FOR GLK 42: Trijicon Bright & Tough(TM) Night Sights are three-dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so with the same speed as instinctive shooting - and without the need for batteries.

Features :

• Tritium-Phosphor lamp
• Sapphire window
• White rings
• Silicone rubber cushion
• Protective aluminum cylinders
• Suppressor sights