I need to mount a Weaver 3-15x50 FFP EMDR on a .308 AR .A CMMG .308 custom rifle with a FF handguard and magpul PRS stock. I have always mounted my scopes on hunting rifles so they are as low as possible . What is the best way to mount this scope on this rifle ? It will never need to be taken off .It should be solid and semi permanant. I also need it to be under $150.00 . I was thinking Seekins low 30mm rings .Any one have any imput ?