FAB Defense Glock 42 4-Round Magazine Extension Black

FAB Defense Glock 42 4-Round Magazine Extension Black. The FAB Defense Glock 42 4-Round Magazine Extension works by replacing the floor plate in your standard Glock 42 magazine to add 4 extra rounds of capacity bringing the total to 10 rounds in a magazine. If you plan to daily carry your Glock 42 pick up the FAB Defense Glock 42 4-Round Magazine Extension today. Specifications for FAB Defense Glock 42 4-Round Magazine Extension: Manufacturer: FAB Defense Color: Black Magazine Capacity: 4 Round