UZI bolt terminology

[7.62 Nato]

What is the proper term for the style of bolt the UZI uses that overlaps the barrel? I've heard it used referring to silencers that overlap the barrel also. I'm just having a brainfart and can't remember the term.

Thanks in advance.

 

[TSPC]

Telescoping bolt

Reflex Suppressor

 

[7.62 Nato]

Telescoping bolt

Reflex Suppressor

Thanks. Reflex suppressor was what I was thinking of. Telescoping bolt still doesn't sound familiar. Damn head injuries suck!