This is a Premium Billet Aluminum Sight Tool, Black Anodized for any glock front sight M2.5-0.45 TPI with 3/16 Hex screw so your sights won’t fall off. This is the next step up in having the highest quality glock build, a Properly-Tightened front sight that won’t just fall out or loosen in any circumstance. High strength Alloy means that you will never need to buy another sight tool again! No International Shipping!