How many rails have holes for back bottle ASAs?

[la690]

I have a AM/MM rail that doesnt have the holes for a back bottle ASA but it does have two little punch marks denoting where the holes would go. How many rails have pre-drilled holes for a back bottle? Do only certain types have them? Do E-mag rails have the punch marks? Thanks.

[danheneise]

i believe only the classic am/mm rails have the punchout spots.

[Mag Master 04]

all old am/mm rails should have a punchout, but im not sure about the NEW am/mm rails, i dont know if they changed them or not

[ramennoodles]

my friend bought a tko AM in december and it had the punchouts

[la690]

what about RTP and emag rails? thanks for the responses so far.

[JadedT]

Pretty sure my RTP rail had no pre-drilled guides for mounting a back bottle. Cannot confirm since I had RogueFactor mill out my RTP rail...