Holosun does not provide this specification, but this is the screw information provided by Aimpoint is M3x4 and this red dot shares the same mounting footprint as the Aimpoint Micros.
The option is the 1 MOA red dot in the sight or the 65 MOA circle and the 2 MOA dot together in the sight. There is no option for the 65 MOA circle to be on its own.
Yes, but you would need to purchase a different mount set up that is specifically an absolute co-witness. The mount that is included is a lower 1/3rd co-witness and there is no way to make that an absolute co-witness.
Yes, the text is blacked out on this model.
Yes it is removable.
Yes it will work. The holosun 515gm has the same footprint as the aimpoint micro series (H1, H2, T1, T2).
The Holosun Military Grade Micro HS515GM uses the Aimpoint Micro footprint so it will work with that mount.
The included spacer for the Holosun Military Grade Micro HS515GM will provide a lower 1/3 co-witness with standard height AR sights. The center reticle height will be 1.63".
The Holosun Military Grade Micro HS515GM weighs 3.74 ounces (0.24 pounds).
The Holosun Military Grade Micro HS515GM weighs 3.74 ounces.