Check out the Evolution bipod from Modular Evolution LLC. Lightweight, durable, easy on/off (with rail adapter), good adjustments (love the 45 degree front or back setting), lots of accessories (leg lengths, tripod adapter, spiked feet, etc). I would say fair priced ($329.99 for standard leg length setup) for what your getting (all aircraft aluminum and carbon fiber).
I love mine!!!
Local company for me in Mapleton Utah.
Check them out!