The Mec-Gar CZ 75B 85B SP-01 9mm 19rd Extended Anti-Friction Mag is a high cap extended 19 round capacity 9 mm magazine. It features Plus-2 Drop Protection System Adapter and is only 0.625 inches longer than flush fit magazines. The redesigned tube improves functionality and is heat treated for strength. It features interlocked internal components. The anti-friction coating allows for easy loading and superior anti-corrosion properties.