The K-80 TT-Blade. This new style titanium trigger blade from Krieghoff provides a more secure location for your finger in all weather conditions. The vented surface allows water to drain away on the wettest day and your finger locks into the slots. It looks great with the Titanium Hangers and Titanium Choke Tubes! The Titanium Trigger fits all new model K-80 guns that have the trigger blade attached on a T-slot rail. Earlier guns had a dovetail. If you wish to fit a TT trigger on an earlier gun then you will also need a trigger upgrade. This can be done in our Krieghoff Service facility. Normally we recommend that you send the receiver of your gun to have the trigger fitted. It is possible to fit the blade yourself.