Agency Arms Glock 43 Compatible Magazine Releases Black MR-G43-B. It features a serrated and enlarged face that is extended 3/64in. They are machined from 6061 aluminum and MIL-A-8625 Type 3 Hard Anodized. Specifications for Agency Arms Glock 43 Compatible Magazine Releases: Manufacturer: Agency Arms Gun Make: Glock Gun Model: Glock 43 Color: Black Finish: MIL-A-8625 Type 2 Anodize Fabric/Material: 6061 Aluminum Features of Agency Arms Glock 43 Compatible Magazine Releases Material - 6061 Aluminum Coating - MIL-A-8625 Type 2 Anodize Color - Black Compatible with the G43 Package Contents: Agency Arms Glock 43 Compatible Magazine Releases What firearm models does the manufacturer say Agency Arms Glock 43 Compatible Magazine Releases is compatible with? The manufacturer suggests that Agency Arms Glock 43 Compatible Magazine Releases is compatible with Glock 43Agency Arms 25MR-G43-B: Glock 43 Compatible Magazine Releases Black