The manufacturer doesn't specify if the Sig Sauer Tango4 6-24x50mm Rifle Scope comes with a sunshade or not. Based on customer reviews it sounds like it does, however this sunshade should work:
https://www.opticsplanet.com/vortex-riflescope-accessory-sun-shade.html?_iv_code=VX-RA-SUDE-50MM-V-SHADE
The weight is 22.9 ounces.
This optic weighs 22.9 ounces
Sig Sauer optics are manufactured in Wilsonville, Oregon USA.
The Sig Sauer Tango4 6-24x50mm Rifle Scope has Sig Sauer's SpectraCoat treatment. This lens coating helps prevent glare and provides better light transmission.
The Sig Sauer Tango4 6-24x50mm Rifle Scope is compatible with Sig's SBT Turrets and are available for purchase through Sig. You would need to contact Sig in order to find out how long it would take to get on of those turret caps.
The Sig Sauer Tango4 6-24x50mm Riflescope is not BDX compatible.
Yes, this Sig Sauer Tango4 6-24x50mm Riflescope will hold up on 12 gauge slug gun.
The Sig Sauer Tango4 6-24x50mm Riflescope is 15.6 inches long.
With the 50mm objective you would need high rings.