Flight instructor reported a near midair collision with another aircraft on final.

Attributes
ACN	1757292
Time
Date	202008
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Flight Plan	None
Aircraft 2
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Flight Phase	Final Approach
Person 1
Function	Pilot Not Flying Instructor
Qualification	Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 89 Flight Crew Total 6200 Flight Crew Type 2300
Events
Anomaly	Conflict NMAC
Miss Distance	Horizontal 50 Vertical 75

Narrative:

On a student training mission from ZZZ1 to ZZZ to complete pattern work. Aircraft X [is] equipped with G500. Our traffic screen was displayed on the mfd (multi-function flight display) with 2 and 6nm rings. The student had been making all appropriate radio calls.on final; without warning aircraft Y overflew us at less than 100 ft. No radio calls were heard and aircraft Y did not appear on our ads-B display; nor did the pilot respond to any radio calls.

Original NASA ASRS Text

Title: Flight Instructor reported a NMAC with another aircraft on final.

Narrative: On a student training mission from ZZZ1 to ZZZ to complete pattern work. Aircraft X [is] equipped with G500. Our traffic screen was displayed on the MFD (Multi-function Flight Display) with 2 and 6nm rings. The student had been making all appropriate radio calls.On final; without warning Aircraft Y overflew us at less than 100 ft. No radio calls were heard and Aircraft Y did not appear on our ADS-B display; nor did the pilot respond to any radio calls.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.