A bit OT but still Commonwealth, C3 sling

[nzl1a1collector]

According to the Canadian C3 Workshop manual the official sling used with the rifle is:-

SLING - SMALL ARMS
BRETELLE D’ARMES PORTATIVES
1005-21-873-0033

Even though the sling shown in the pics for the C1 and C3 rifle look the same they are completely different as the NSN for the C1 Rifle Sling is 1005-21-103-1156. Someone got lazy and copied and pasted the same 'sling' line drawing into the both documents.