I have a AR 556 MPR rifle and I’m wondering what size bipod do you guys recommend for me to get. I plan on hunting deer, coyotes, target shooting extra., with it. I’ve been looking at Caldwell’s carbon fiber ones and also Harris bipods. But what throws me is they are ranging from 6” to 10”, 9” to 27”, and some shorter and longer and then there’s everything in between them from attaching to the firearm to one’s that don’t. I’m looking for one that attaches to my firearm. Thank you for your time and God Bless.