Yes, I have one on a F3 with F4 pending. I can tell you aside from all the other ... people that don’t know a thing about Q or CGS or anyone just happened to come into the shop that day and were blown away by its performance. I mean, I just can’t say enough and certain people loyal to other companies will swear it was shot wet or ?? I can assure you, it was not shot wet, it is one heleva Suppressor. I have more then a Dozen pistol Suppressors alone from Rugged, B&T, SICO, Q, GA, YHM, AAC, I lost track, just got a NYX MOD 2 from EA. I don’t care who makes it as long as they perform in top of there class (YHM was had cheap to beat the crap out of, B&T was proprietary to bbl) CS is excellent (GA & B&T lack in this area, I won’t be purchasing from either again) use the best materials, as lightweight and short as possible while maintaining that leading suppression, I almost bought an OSS this last round of blowout previous model, I might get one eventually, out of all the pistol cans I have fired, it was noticeably quieter with 147gr. It takes a lot to impress me and it did just that. Nick from ZEV was there to Demo it for us.