The reason for sale is I did not know with my level of astigmatism whether the 6 MOA dot or 3 MOA dot would work better for me. I don't know why Sig Sauer does not offer the 3 MOA version pre-installed on their slides, very annoying, as if you decide to keep the 3 MOA version, you can't return the 6 MOA version as you're using the slide it came on... So I had to do it this way, but my loss, your gain.
I looked through both optics, and for my eyes I decided on keeping the 3 MOA. All I did was throw the battery in, look through it, then put it in the box the 3 MOA one came in, with all the accessories that come with the Romeo1Pro as if you bought it individually. Makes no sense, but again, my loss your gain, you get all the accessories like the shroud and cover for the shroud. Optic cover for use with shroud. Lens cover for use without shroud.
Supplied tool for battery cover installation and adjusting windage (also serves as a holder for a backup CR1632 battery). If you have any questions please contact me. If you want more pictures, please contact me. This item is in the category "Sporting Goods\Hunting\Scopes, Optics & Lasers\Red Dot & Laser". The seller is "mh_andrea" and is located in this country: US.This item can be shipped to United States.