MRC:
An indication of the weapon/s/ for which the item is designed.AHVQ
Weapon For Which Designed:
Automatic pistol m1911 and automatic pistol m1911a1 and revolver m1917 and submachine gun m1 and submachine gun m1a1 and submachine gun m3 and submachine gun m3a1 and submachine gun m1928a1
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
As differentiated by cartridge grade designator, weapon for which designed, unit package quantity, unit package type
