Product DescriptionUpgrade your Glock Gen4 controls with the Cross Armory 3 Piece Kit. This extended kit includes a dimpled pin set, an extended magazine catch, and an extended slide lock to improve handling and ease of operation without interfering with holster use. Built with a durable mix of 4140 steel (slide lock and pin set) and aluminum (magazine catch), it's designed for a solid fit and reliable performance on compatible Gen4 models.Product Highlights 3-piece extended upgrade kit: dimpled pin set, extended magazine catch, and extended slide lock 4140 steel slide lock and pin set for strength and long-lasting durability Aluminum magazine catch for lightweight, responsive magazine releases Designed not to interfere with holster fit for everyday carry or range use Compatible with multiple Glock Gen4 models including 17/19/20/21/22/23/26/27/29/30/31/32/33/34/35/40/41Specs Brand: Cross Armory Manufacturer Part Number: CRG4OKBK UPC: 046139039207 Kit Includes: Dimpled Pin Set; Extended Magazine Catch; Extended Slide Lock Materials: 4140 Steel (slide lock & pin set); Aluminum (magazine catch) Color: Black Compatibility: Glock Gen4 (Models: 17, 19, 20, 21, 22, 23, 26, 27, 29, 30, 31, 32, 33, 34, 35, 40, 41)Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.