Originally Posted by
philinmedford
Ok, I've got a question that must be so obvious that I can't find it anywhere because it falls under the category "everyone knows that". I'm having a AR-15 built and it has a A3 flattop with T marks. I'm thinking of putting a red dot scope on it. Here's the question. Do I need to mount something on the top, or can I just mount it on there? All I've ever used is weaver mounts but just "eyeballing" it I don't see how weaver mounts would work. Will picatinny mounts be what I'm looking for? I appreciate any help in this matter.
