||I got this adapter from my local airsoft shop today. Along with a WE 1911 my I bought from my friend. I used the rest of my green gas can testing the gun out and was disappointed with the low fps. I decided to use the propane next and noticed a dramatic increase in fps. Also I was able to fire more shots with propane than green gas. This adapter costs as much as a can of green gas and it pays for itself over the course of about a week. But as I'm sure you have all heard before, propane smells horrible and don't fill inside. Only outside. Overall, great buy and I completely recommend it.
comes with a cap
does not scratch your gas valve (but it's plastic)
.....Have not found any yet.
If you have a gas gun you need a propane adapter. It saves so much money.
Rating: [5 of 5 Stars!]