Sorry to get off topic in an area of the board in which I am supposed to make sure things stay on topic... BUT! Hahaha!
I recal a couple years ago there were some issues with ARMS #19ACOG mounts that were bought, from I believe, Botach. As it turned out, they were not real ARMS mounts even though they did have the ARMS logo etc. As I recall, they were actually made by GG&G. I believe they were much more black in color than the traditional ARMS grey color. What I remember most about this problem is that there were some issues with these mounts and the owners were in need of warantee and were out of luck.
I also recall, at about the same exact time, Botach doing a clearance of all their ARMS gear. They didnt sell ARMS gear for a little after that at all. I just checked and seethat they do have ARMS gear for sale on their site, but I could swear I remember something about some manufacturer saying they would not honor the warantee of any of their products bought through Botach.
Anyway... sorry for the deviation from the topic, but I just remembered all this and thought it was an intersting story. To get back on topic, get the #40. If not, whatever it is you do buy, dont buy it from ASA.