DIY Train Horn Gun Kit with 4 Trumpets (Universal) quad ridged horn Battery Compatibility: The dual train

Battery Compatibility: The dual train horn works seamlessly with original and compatible batteries from chosen brands

Simply connect the components and you're good to go

this horn is built to withstand the test of time and provide years of reliable use

Works with all Bosch 18v batteries or generic batteries

Impact Tool: Designed for effortless installation and maintenance

DIY Train Horn Gun Kit with 4 Trumpets (Universal) quad ridged horn Battery Compatibility: The dual trainJust do it with our Train Horn Kit with 4 Trumpets! We included all necessary for building extremely loud cordless horn from your impact tool. Most brand tool perfect fits our compressor and horns to build it yourself. How to make a train horn? Here is simple steps: Unscrew a clamp shell Remove gears Remove drill motor Fit shell to match air compressor Connect air compressor to terminals Connect battery and doublecheck compressor works properly Screw