Engraving FMBUS s.no

[1911_sfca]

I have read through the CA AW regulations, and the ATF regs for engraving, but have not found the answer to my question.

If my model is AR-RIFLE and serial number is FMBUS001, and multi caliber, can I engrave:

MYNAME
LOS ANGELES, CA
AR-RIFLE
FMBUS001
MULTI-CAL.

or does it have to say
MODEL: AR-RIFLE
S/N: FMBUS001
CAL: MULTI

When I look at commercially-manufactured guns, they usually don't designate "S/N" and never designate "Model:".

Any pointers or tips on this?

[ar15barrels]

You do not need to list the make/model/serial/caliber nomenclature.
You can simply list the make/model/serial and caliber.