Glock Modular Magwell G17 34 Gen5 G45 Black Polymer. Specifications for Glock 50431 Modular Magwell G17 34 Gen5 G45 Black Polymer: Manufacturer: Glock Color: Black Fabric/Material: Polymer Gun Make: Glock Gun Model: Glock 34 Gen 5 Glock 17 Gen 5 Glock 45 Condition: New Package Contents: Glock 50431 Modular Magwell G17 34 Gen5 G45 Black Polymer What firearm models does the manufacturer say Glock 50431 Modular Magwell G17 34 Gen5 G45 Black Polymer is compatible with? The manufacturer suggests that Glock 50431 Modular Magwell G17 34 Gen5 G45 Black Polymer is compatible with Glock 45 Glock 17 Gen 5 Glock 34 Gen 5Glock 50431 Modular Magwell G17 34 Gen5 G45 Black Polymer