Cross Armory 3-Piece Kit Glock Gen5 Blue Anodized Aluminum combines durability performance and style in one package. Featuring a precision-machined 4140 steel dimpled pin set extended slide lock and an aluminum extended magazine catch this kit is designed for superior functionality without compromising your holster compatibility. Specifically crafted to fit Glock 17/19/26/34 Gen5 models it's the ideal upgrade for reliable performance and sleek design in your firearm.