After buying a replacement barrel for my R93 (in 22/250) I have been wondering which mod to get for it. My thoughts were to get a jet z as I liked to the look of them, but after handling one today I decided against it due to the weight, I have ended up with an A-Tec CMM4, only weighs 220g as opposed to 560g, and have to say I am impressed. Weight and sound moderation very good. I already have an A-Tec Maxim for my 6.5x55, which I have to say was a bit disappointing and a Wildcat Predator on my other 22/250 that is very good although quite large. Pleased at the moment, and did manage to christen it tonight!!