Meprolight ML10222G ML10222 / 10222: Meprolight Tru-Dot night sights feature unequaled low-light performance as the brightest night sights available. They are trusted by military and law enforcement. This fixed set features self-illuminated green Tritium front in a 3-dot configuration with a green or orange rear. This model is meant for use on Glock 10mm, 40 S&w, and 45 ACP caliber pistols, model: G20, 21, 29, 30, 36, and 41. This set is not for the G37 in 45 Gap.