Mount question

I just bought an Aimpoint M3 on the EE. Since it doesn’t come with a mount and I would like to co witness (dot align with the front site), what mount set up do I need to go with? I was thinking of an Aimpoint QRP mount, would I need a spacer to co witness?

Thanks in advance for your help…

ANYONE out there? Or is this too personal of a choice to speak of it?

The QRP is a good mount. On an AR15, you will need the spacer and it will give you an absolute co-witness. LaRue, Bobro, ADM, GG&G, PRI, and Wilcox are some other companies that make excellent mounts.