Arrow 3903 SL03

A: Assuming you are using a conventional keyway and not a 7 - pin Interchangeable Core for instance, a typical 1-1/8" length mortise cylinder with the Arrow 004 Cam would work on the Arrow 3903 SL03 Mortise Exit Device Trim perfectly.

The proper part number for the cylinder from Arrow would be MC61-004.

The 004 cam can be reviewed on page 19 of the link below.
The MB61 cylinder can be reviewed on the 20'th page.

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MC61-4

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