This is a great barrel to get if you are running on a tight budget. I have never used it with any other gun besides the pm5 but it comes stock on the pm5. My brother has a dm4 with a ultralight barrel, i tested it out on my gun and there really was no difference in accuracy, its a tad bit lighter but thats all. I say save $70 and get this thing over the fancier two-pieces that tend to be a bit pricey.
Definitely the best in its price range so if its in ur range consider it greatly.