I’ve seen Soldiers incorrectly marking M2A1 gages.
Marking the M2A1 gage with a serial number is required. But care must be taken not
to mark it in a critical area. Instead, Soldiers should attach a dog tag marked with the serial number.
This is the incorrect way to mark a gage.
More details are on Page 4 of TB 9-5220-216-24 (Jun 19).
Critical areas on the gage.
Also, armorers must avoid damaging the M2A1 gage when marking the serial number.
Ft Polk, LA
: Thanks, Karl. Great tip for keeping gages "on the mark."