Cast SKS spike bayonet collar

[shotout]

I got a chance to look through several hundred spike bayonets. I saw some numbers in various fonts and sizes on the collars with hardness testing "dots" on others. One appears to be cast. Are there any know? The knurling is even cast in.

[running-man]

Wouldn't surprise me if they were.  The Chinese really trended towards casting any part they could for the Type 56 in the early 70's