The Centennial Defense Systems extended control kit combines our stainless steel pins, extended slide lock lever and extended slide release providing an increase in durability and a unique look. The pins and slide lock lever are machined from high quality stainless steel and are direct replacements for most Gen 1-5 Glock models with no extra fitting required. Note: Will NOT fit G36, G42, G43, G43X, G48. Specifications for Centennial Defense Systems Extended Control Kit for Glock: Manufacturer: Centennial Defense Systems Fabric/Material: Stainless Steel Gun Make: Glock Gun Model: Universal Package Contents: Centennial Defense Systems Extended Control Kit for Glock