Depends where you going in your own mind really,
My Blinger has a Hogan Decimeater on it and looks the Dogs to me,
Weihrauch are light and look real good, though Logun do a special Co2 in carbon fiber very quiet and smart lookers,
The Deben Whisper range are very good too and do a short one for pistols,
I use one on my Brocock GP,
There ya go, Have Fun, B.