[ozzymandus]

The Thompson was killed by several factors, price being the main one. Weight, machine tool time, use of valuable materials also played a part, and the widespread issue of the M1 Carbine also factored in. Thompsons are super cool, but they weigh a ton.

This Kriss gun is interesting, and cool that it’s in .45, but it looks to me like durability would be a major factor. When you’ve got the bolt turning corners, there’s going to be a lot of wear.

[ctdonath2]

When you’ve got the bolt turning corners, there’s going to be a lot of wear.

My first thought too. That's a lot of energy to keep routing around a corner.