Do I have to reenlist when I complete training as a 51C to meet the service remaining requirement?

If you are in the current reenlistment window, you have to reenlist to fulfill the 5 year Service Remaining Requirement (SRR) for MOS 51C; this must be done BEFORE school attendance in accordance with AR 614-200. Once you have completed the Army Acquisition Professionals Course (AAPC), if available or offered, you may be eligible for the MOS Conversion Bonus.