I have the Vital Bow Gear Camelback pendulum site. It's really nice and rugged. It has a locking mechanism on the top/back, so you can lock it down or shooting on level ground.

Some people like pendulums, others don't. It all depends on personal preference. My VBG Camelback is only good out to about 30 yards. That is the one drawback on pendulums. The good side of pendulums is that, once you get them sighted in properly, you are then dead on accurate from 5 yards out to about 25-30, in every given situation too. No guesswork involved.

Butch A.