Ic Core Mortise Rim Cylinders

Commercial locks are designed so the cylinder comes out without the door furniture coming off. Interchangeable cores pull with a control key, mortise cylinders thread into the lock body, and rim cylinders sit behind the door with a tailpiece through it. Which one a door takes is decided by the lock, not by the brand.

Identify the format before ordering, since the three are not interchangeable even where the keyway matches. Each cylinder we list names its format, its length and the tailpiece or cam it ships with.