This adapter lock secures the MC-21 (EF to L) adapter and Sigma MC-31 (PL to L) adapters to the Full Metal Jacket cage for PYXIS 12K or 6K, eliminating potential mounting failures and relieving strain on the native mount.
Machined from high-strength aluminum and anodized black, it is specifically designed for the MC-21 or MC-31 Adapter from Sigma--and is the cleanest way to adapt lenses to your PYXIS.
NOT compatible with the 'Hollow Point' version of the Pyxis Cage.
FOR VILTROX ADAPTERS, PLEASE SEE THE VILTROX SPECIFIC LISTING
Includes: Adapter Lock, Mounting Screws and Hex Wrenches
