What does SIG stand for?

SIG stands for "Sure Isn't Glock"

How to abbreviate "Sure Isn't Glock"?

"Sure Isn't Glock" can be abbreviated as SIG

What is the meaning of SIG abbreviation?

The meaning of SIG abbreviation is "Sure Isn't Glock"

What does SIG mean?

SIG as abbreviation means "Sure Isn't Glock"