DIY Train Horn Gun Kit with 4 Trumpets (Universal) boat air horn Fire it from the trigger

Fire it from the trigger

In the Box

Handheld use only—do not mount under the hood due to heat

Snap in the battery and pull the trigger

DIY Train Horn Gun Kit with 4 Trumpets (Universal) boat air horn Fire it from the triggerSome people want a horn that shows up finished. This kit is for everyone else. The DIY Train Horn Gun Kit with 4 Trumpets is a universal, no frills build project: you supply a brushed drill, and the kit supplies the quad trumpet horn assembly, the compressor, and the fittings. A few hours at the workbench later, you are holding a handheld, cordless train horn you put together with your own two hands plus a story to go with it. What You Get Four