Truglo makes an adjustable pendulum sight. I am seriously leaning towards a truglo pendulum sinceI own their 3 pin sight now and am happy with it. the pendulum sight is about 65 bucks at cabelas, I believe the adjustable pendulum is close to 100 bucks if not a little more. I was considering a cobra pendulum but have heard a few bad reviews of their regular sights, and I like the looks of the truglo pendulum.