Things I liked:Comes in a variety of head sizes. Things I would have changed:Make a package available that includes 100 or so pellets of each size What others should know:Haven t finished testing them in my IZH 46M. I bought four different sizes to find out which grouped the best.
Things I liked:Good fit. I was missing one of the seals. Things I would have changed:I'd like to see some sort of advesive (rubber cement?) included with the package. These seals fall out at the most inopportune times. What others should know:Buy a couple of sets. I lost another seal before I glued them in.