Looking into the atlas bipod to replace my Harris it will give me the versatility I need for the shooting that I mostly do on private land my questions is this what is the life expectancy on an atlas is there any maintenence on them and mounting it to a rifle that has dual sling swivels will I be able to keep the one to the rear for my sling it is a savage model 10 fcp in a Hs precision stock thank you for your time