STO Falx owners

Go for it, I think you'll be pleased. I've 3 of them, 1 on a .177 Gladius, 1 on a SK19 in .22 and one on a K1 in .25. I don't know if it is the quietest on the market to my ear. I think it's the tonal qualities, lower frequency. I put a Q-Shot on a .177 K1 and a Huma MD-40 on a K1 in .22. My judgement should be taken with a grain of salt as I've suffer from hearing loss due to years of power equipment and firearm shooting without hearing protection. Some cat over on GTA did a comprehensive test and review of moderators, well worth the read.

I tried one and because it wasn’t caliber specific or the bore was way too big for my 177 the performance wasn't great. Reached out to STO and they said they get better performance at higher power and I was shooting quite low at 8fpe. Tried it on my bigger guns and it was better but wasn’t mouse fart quiet I was hoping for especially for the size and price. Some people say it works very well for them but I ended up returning it. 

I have one on a .22 Crown Continuum 600mm barrel. I think that it's as quiet or slightly quieter than the Huggett on a .22 Impact 700mm barrel, but it's REALLY close. You do need to figure out which one to use or just ask them for your rifle caliber and speed/foot pounds.

Though slightly more cost than some others, would I buy another? Yep!

mike

I have one on my hybrid Veteran 22 that I use along with the factory shroud, and it makes a quiet gun even quieter. I’m shooting 18 gr pellets at about 900 mostly into a steel trap. It makes a difference. I use it on my Marauder also but it doesn’t seem to make quite as much difference.

Are you in Eastern Washington?

I'm using one on my Leshiy 2. Many disagree, but I've found the high flow does better than any other mod I've tried.

Use the calculator info on the website to figure out which flow you need for you application. 

I use one on my .25 Impact 78 FPE slugger. I don't use the shroud, just a 14x20mm CF tube lightly tensioned and the mod screwed on the barrel retainer nut. Since there is no shroud, I use the High Flow version of the Falx and it works great. Very good air stripper and very good noise reduction. Without the Falx it sounds like a .308 rifle... Highly recommended. I also use the same thing on my .25 Delta Wolf, and when I did the calcs that STO recommends, I used the High Flow also because the shroud on the DW doesn't really do much...