Product Description The Cross Armory Dimpled Pin Set is a precision-machined upgrade pin set designed specifically for Glock Gen4 handguns. Built from 4140 Ordnance steel (not cast) and surface treated for improved finish and corrosion resistance, these pins feature enhanced geometry to improve ergonomics and help reduce installation time. Designed to work without interfering with holster fit, this set includes an additional longer backstrap pin for Gen4 configurations that require it. Product Highlights Precision-machined (not cast) 4140 Ordnance steel pin set for Glock Gen4 pistols Dimpled ends and enhanced geometry for improved ergonomics and easier installation Surface-treated for improved finish and corrosion resistance Designed to avoid interference with holster fit and function Includes an additional longer backstrap pin for applicable Gen4 setups Specs Brand: Cross Armory Manufacturer Part Number: CRG4PSBK UPC: 726798348611 Product Type: Handgun pin set Material: 4140 Ordnance steel Finish: Surface treated for improved finish and corrosion resistance Compatibility: Glock Gen4 models including 17/19/20/21/22/23/26/27/29/30/31/32/33/34/35/40/41 (Gen4) 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.