The download for the mr31 target on my printer isnt working too good for me. I need to find some actual targets, supposed to be .75 x ring and 1.75 10 ring correct????? I spun a front sight down, chucked it in a drill, tapered it down to half its original width, reblued it. Been on the rifle since day 2, been looking at a hooded rear sight kit from white oak for 45 bucks 1/2moa kit. Maybe pick up some boxes of that hornady black stuff .This ar15 thing is like being addicted to herion or crack .......