FAB Defense M4 Folding Collapsible Buttstock for VZ58 - Metal Joint Black fx-M4VZ. 58 converts your VZ58 OEM stock to M16/M4 collapsible and side folding stock. Specifications for FAB Defense M4 Folding Collapsible Buttstock for VZ58: Manufacturer: FAB Defense Gun Model: CZ Sa vz. 58 Gun Type: Rifle Features of FAB Defense M4 Folding Collapsible Buttstock for VZ58: Stock Manufactured to Fit the VZ58 Non Slip Design Provides Superior Shoulder Positioning Enhancing Tactical Performance After Market Sized 6061 Hard Anodized Aluminum Buffer Tube Fits Any M4 Stock Slightly Angled to Allow Optimal Sight Alignment Tube Incorporates a Sealed Compartment Quick Stock Deployment Folds to the Left Side No Gunsmith Required Ideal for Use in Confined Close-Quarter Combat Areas Due to it's Compact Size when Folded Able to Use Weapon as a Baton Package Contents: FAB Defense M4 Folding Collapsible Buttstock for VZ58 What firearm models does the manufacturer say FAB Defense M4 Folding Collapsible Buttstock for VZ58 is compatible with? The manufacturer says that FAB Defense M4 Folding Collapsible Buttstock for VZ58 is compatible with CZ Sa vz. 58FAB Defense M4VZ-B: M4 Folding Collapsible Buttstock for VZ58 (Metal Joint) Black