I used a homemade rig like that for about a year, and it does work. Then it started creating tons of foam and not working very well. I was wasting a ton of beer and ending up with major carbonation loss. I bought the bullet and bought a Beergun - and it has been awesome! What an improvement. Shortly after I bought my beergun, I saw that Northern Brewer came out with their own version which has the added bonus of bottling at serving pressures, so you don't have to dial back the psi on the regulator like you do with the Beergun. I haven't used the NB version, but I do love my Beergun.