so im dead set on getting the Elite Operator 2 from RRA. can someone explain the difference in which rear sight i should get? i have ruled out the carry handle. so my only options left are the tact carry handle, dominator 2 eotech mount, or the stand alone rear. when the gun comes in i'll use the iron sites for sometime. but as far as optics go, not sure what i'll do.more than likely i'll put some scope on. i can say i don't think i'll ever get the eotech. they are a little pricey. i'll have to wait till i graduate from college. thanks for any info.