
| Type | Dummy, R1M1 |
|---|---|
| Projectile | steel, aluminum windscreen, black, 1 iron driving band Projectile Markings: (white ink) DRILL DRILL B 81 20mm TYPE 820A R1M1 (stamped on fuze) FUZE PLUG KZA348 B 81 (stamped on projectile) 20mm PRAC R1M1 |
| Case | steel, segmented crimp, black lacquered, 4 holes |
| Primer | percussion, screw-in crimp |
| Headstamp | (on primer assembly) DM64 B 80 AY |
| Notes | Primer housing is present but there is no primer. |