CZ Custom Magwell MecGar CZ 75 3 Round Magazine Extension Silver. Specifications for CZ Custom Magwell MecGar CZ 75 3 Round Magazine Extension: Manufacturer: CZ Custom Color: Silver Magazine Capacity: 3 Round Gun Make: CZ Gun Model: CZ 75 Gun Type: Pistol Package Contents: CZ Custom Magwell MecGar CZ 75 3 Round Magazine Extension What firearm models does the manufacturer say CZ Custom Magwell MecGar CZ 75 3 Round Magazine Extension is compatible with? The manufacturer suggests that CZ Custom Magwell MecGar CZ 75 3 Round Magazine Extension is compatible with CZ 75CZ Custom 10671: MecGar Magwell CZ 75 3 Round Magazine Extension Silver