The M4-VZP Buttstock for the VZ.58 converts your VZ58 OEM stock to M16/M4 collapsible and side folding stock. Advantages: 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