Glock Connector 5.5lb. #5 Gen4 / Gen5 Marked " . " (Includes G44 G45 G45 MOS). This is a factory original Glock part designed for all Gen4 & Gen5 Glock pistols as well as the G44 and G45. It is made to the same high standards in material and workmanship as the parts that originally came in your Glock firearm. This part is perfect to replace your worn or damaged parts or to have as a spare to keep your Glock in top operating condition.