Ha ha. I have no clue as to what manufacture it is Eric. It looks like a "G", inside a micrometer to me. Maybe someone here knows...As far as scopes go, I don't need a lot of eye relief on my scopes. I like 3-9x40 as an all around flexible power range. Funny thing is, I may end up just throwing on one of my favorites and call it a day. However, If I can swing the money I may end up just buying davidlea's if he still has it. Sorry no poker face. I mean, he needs to lower the price on that damn scope and I'd buy it!!!!!