PRO ARMS Tritium Steel High Sight for Umarex / VFC G17 Gen5, G19X, G19 Gen4 GBB Airsoft

• Machined steel construction
• Tritium ( Hydrogen-3 ) illuminated aiming dots for use in low-night or darkness
• Suitable for Umarex / VFC G17 Gen5, G19X, G19 Gen4 GBB Pistol

NOTE: Tritium is an unstable isotope of hydrogen with a half-life of about 12 years, aiming dots will lose half of the brightness for about that period.