To install the P17 hammer block first remove the magazine and make sure the chamber is empty.

Pull down the take down tabs and remove the slide

Insert the Hammer Block tab into the slot above firing pin

While holding down take down tabs, replace the slide.

Keep safety off to manually cycle action.

Perform a dry fire check.

Works well with the MantisX dry firing training aid.

Turning on MantisX

Start a MantisX drill

To remove the hammer block pull down the take down tabs, remove the slide and pull ou the hammer block.

https://www.ambgun.com/ambidextral-pistol/P17hammerblock