A gun part? (5)

I believe the answer is:

piece

This clue is a double definition.

'a gun' is the first definition.
(piece is a kind of gun)

'part?' is the second definition.
('piece' can be a synonym of 'part')

(Other definitions for piece that I've seen before include "See 3" , "constituent" , "Musical work; bit" , "Firearm -- collector's item" , "Part - portion" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.