You cannot receive IMs for some reason
When you say "blanks" I take that to mean that there are no parts on/with the FSB eg. sling swivel, FS post ect. Am I correct? I am interested in a perban version, and while I am asking do you have any that are predrilled and are they Colt manufacture?
Thank you for your time in answering these questions.
These are Bushmaster "F" marked sights. They are NOT predrilled. any machine shop can do that for you for $10.00
I have the other sight parts if you need them ( Post, detent, sling swivel and rivet)