Yes it will fit and work just fine

Hi Jesus, yes sir, this is made for the 22/45 lite. It comes with 6 Interchangeable Lite Pipes, that does not mean Lite 6 model.
Stay safe & have a great day!

Hi Jesus and welcome. Yes, this sight fits the Ruger mark IV 22/45 lite model no issue. Cheers, stay safe and enjoy!

Yes, it will fit.
The main difference between a Ruger Mark IV 22/45 Lite model and a Lite 6 model is the barrel length; the Lite model typically has a shorter barrel (around 4.4 inches) while the Lite 6 model has a longer barrel (around 6 inches) making it better suited for target shooting with greater accuracy at longer distances.
Key points to consider:
Barrel Length:
This is the primary distinction, with the Lite 6 offering a longer barrel for improved accuracy at longer ranges compared to the shorter barreled Lite model.
Purpose:
The Lite model is usually preferred for concealed carry or close-range shooting due to its compact size, while the Lite 6 is better for target shooting where longer sight lines are beneficial.
Other Features:
Both models will share most other features like the lightweight polymer frame, aluminum receiver, and similar grip design.