what is max thickness for MA series locks


The AL series lock fits up to 1 7/8” door thickness out of box.
The minimum door thickness that the AD or CO series lock will mount on is 1 3/8".  Be advised that this will require additional spacers to be ordered separately to allow the lock to mount...
The Falcon MA will not fit a 1-3/8" thick door. 
No parts are compatible between the Falcon MA-Series and the obsolete Falcon M-Series.
Here are some of the major differences between the M and MA-Series.  Lever mounting post holes -  Locations have changed on door template.  (12 and 6 o'clock for M lock, MA ...