Edit 2007-08-11 :
I bought the blue barrel tip made by kingman. My barrel is now longer on ported part, and is more precise. I was hitting a 5'' square easy at 50'. I also had a small issue with it. My marker stock recocking in one game, but after lubing it (I only put 3 drops of oil in the ASA and dry fire about 50 shots), everythings was fine, so there's no much to say
Here's a new pic with the barrel tip on :
