Width - 0.122"

Blade Height - 0.215"

Overall Height - 0.283"

Notch Width - 0.169"

Blade Height - 0.231"

Overall Height - 0.321"

Trijicon's HD XR Night Sights take the advanced features of their Bright & Tough line and further improve upon them. To increase acquisition speed, the HD XR series sights feature a a bright, orange photoluminescent outline of the tritium lamp. For better identification of targets and hits at increased distance, the XR series also features a more narrow front sight. The subdued rear sight has been steeply hooked to assist with one-handed emergency slide operation. Green lamps are warranted for 12 years from the date of manufacture.Glock 17 / 17L / 19 / 22 / 23 / 24 / 26 / 27 / 33 / 34 / 35 / 38 / 39The sight bodies are machined and phosphated steel to provide exceptional durability, while each tritium lamp is housed in aluminum cylinders mounted on silicone rubber cushions to withstand heavy shock and recoil. Each lamp has also been capped with sapphire jewels to evenly distribute light and protect the lamps from solvents and punctures.