DIY Project: Beer Gun

In this project I teach you how to make a beer gun for bottling beer from a corny keg.

High quality beer guns are readily available online and in most homebrew stores. They work great by allowing you to bottle beer right from your keg. However, they come at a price. Typically $99 once you buy the necessary accessories.

However, there is a cheaper alternative. Typically, when someone wants to bottle from a keg, they have been brewing a for a while. And in that time have collected a large number of spare parts. I was able to build this gun all from spare parts, with the exception of a bung.
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For this build you will need:

1 - Racking Cane
1 - Hose clamp
1 - small length of tubing (about 4 inches that fits the racking cane)
1 - #3 drilled bung
Something to cut the racking cane with. I used a hacksaw blade. Had it cut in under a minute. Not the safest route, but, it was effective. I highly suggest using an actual hacksaw, or dremel, or anything safer.

To attach the beer gun to the keg, you simply need a length of tubing, a picnic tap, and a liquid connect. All of these items I also had extra, just laying around.

Remember, the longer the tubing and the narrower the inside diameter, the less foam you'll get. I recommend six feet and 3/16th.

The gun works on pressure. When filling, pressure builds in the bottle. This is what keeps the beer from going flat while filling. The pressure will get so high that the beer will stop flowing. If you squeeze the bung at the edge, it'll allow some of the gas in the bottle to vent and the bottle will continue to fill. Pretty simple. Just hold on to the bung tight, it's prone to pop off under pressure.

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Narrated By: Don Broetzmann