Shooter's identity questioned in Bow reportedly? (3)

I believe the answer is:

uzi

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'shooter's' is the definition.
(type of machine gun)

I don't understand how the remainder of the clue works.

(Other definitions for uzi that I've seen before include "Israeli sub-machine gun" , "kind of weapon" , "Israeli-designed sub-machine gun" , "Submachine-gun" , "Type of submachine gun" .)

I've seen this clue in The Times.

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