BudsGunShop.com - 9mm cylinder included?

Christopher, yes Sir it does. It includes two Cylinders - 357Mag/38Special Cylinder and 9mm Cylinder. ------------- (( Taurus Tracker 692 Double Action Revolver Specifications and Features)): - Taurus 2-692061
.38 Special +P/.357 Mag/9mm Double - Two Cylinders - 6.5" Ported Barrel - 7 Rounds - Single Action/Double Action System - Ribber Grip - Fixed Front Sight - Adjustable Rear Sight - Medium Frame - Smooth Trigger - Transfer Bar Safety System - Overall Length 11.64" - Overall Width 1.5" - Overall Height 5.66" - Overall Weight 46 oz - Black Oxide Finish.

Christopher, This model does have the 9 mm cylinder, and the 3" barrel stainless steel model here does:----------------budsgunshop.com/catalog/product_info.php/products_id/100192/taurus+692+357mag%2f38+sp+ss+3+7rd+includes+9mm+cylinder.

The Taurus website lists this model as having a 9mm cylinder in addition to the 357/38 cylinder. The barrel will handle 9mm as it is only .001-.002" smaller.
taurususa.com/firearms/revolvers/692/692-revolvers-357-mag-38-special-p-9mm-7-round-3/

Christopher, No, No 9 mm cylinder included. Would not work even though 9 mm is smaller. The barrel is not compatible with a 9 mm round.