Ameriglo brings a clear advantage to your shooting experience on and off the range.The hackathorn sight is ideal for any conceal carry and personal defense weapon.It utilizes a proglo green tritium front with an orange outline and a glare-reducing black serrated rear sight.This model is compatible with glock 17,19,22,23,24,26,27,33,34,35,37,38,39 gen1-4.Not compatible with gen5.Rear Color: BlackType: Front/Rear SetFrame Material: SteelFrame Color: BlackFirearm Fit: Glock 19 Gen1-4Style: SetFront Material: TritiumRear Material: SteelFront Color: Green with Orange OutlineFirearm Type: Pistol