small format vs full size interchangeable core


Refer to Table 1 for a list of T lock tailpieces for conventional cylinders.  Table 2 shows IC tailpieces. Table 1: T lock conventional tailpieces Table 2: T lock IC tailpieces
The lever may be missing the slot feature for the core locking lug.  Verify slot is in place.
The "C" indicates small format IC core, which is the only core style Falcon products.  The C987 will be provided less core unless -6, or -7 suffix is specified (6 or 7 pin core) Example:...
The 23-030 is a Schlage Full size interchangeable core. 
 DESCRIPTION PART NUMBER   Conventional Core  23-030  Conventional Core less logo  23-031  Primus Core  20-740  Primus XP Core  20-740-XP  Primus Core less logo  20-741 ...
UL437 is testing requirement that cylinders pass both a timed cylinder pick test and a forceful core/cylinder pull test.  We have various cylinders to meet this need, please reference our price boo...
The Schlage Full Size IC core is 6 pin only. 
The AL lock can not be ordered to accept any competitor full size core.  The ND lock should be used in these applications.