part of an old firearm ?

[treasureman]

Found this . Looks like it's part of a gun but not sure . Any idea ? Old pistol or?

 

[rocketaroo]

thinking part of a tool

 

[Ramjet]

I'm thinking a heavy duty valve/tap.

 

[stoyve]

It looks like part of some type of early ventury valve used to mix chemicals or detergents while under pressure to me.

 

[AtomRat]

I see the venturi action too. Purfume puffer bottle thing?