Installation of your STILETTO should be performed by a proper SIG Armorer.
Adjusting Your Travel Screws
Your adjustment screws are pre-installed and need to be removed with supplied keys before installing the STILETTO to your FCU
Once your STILETTO is installed, use supplied keys to adjust the Travel Screws 1 at a time to Shooter preference & functionality
Installing your Adjustable STILETTO Face
With your FCU removed from your frame use supplied keys and screws to install your adjustable face.
Place the secondary face onto the front face of your STILETTO matching the screw holes with each-other.
With the supplied key and screws, hand tighten the screw. (Blue LOCTITE is recommended)