What is interesting about the S-African No9 is that at Warminster we had an UZI with the barrel machined to accept a No9 bayonet. Never seen -or heard of one - since. But clearly, it was a factory job and not a saw-and-file job. I just assumed that it was South African because I had seen SA No9 bayonets and realised that SA used the Uzi It also seemed like an obvious choice for SA too, being prolific users of No4 type bayonets too