The new Tanfoglio Xtreme Trigger has a new shape close to a single action shape. It has been developed to be Plug and Play so there are no fitting. You will just have to adapt and glue your over travel screw.
IPSC Production Legal
Warning: Modification to your firearm may nullify the manufacturers warranty. This product must be installed by a qualified gunsmith. No liability is expressed or implied for damage or injury which may result from improper installation or use of this product.