BSA does not state the outside diameter of the BSA Optics Edge 2-7x28mm Pistol Scope's objective lens or eyepiece. However, the Monstrum Flip-Up Rifle Scope Lens Covers, size C should work for the objective lens.
https://www.opticsplanet.com/monstrum-flip-up-rifle-scope-lens-covers-objective-lens.html?_iv_code=MON-R2-MONFRSCOBJ-FCE-C-T&_iv_objective-lens-diameter=range-26-31-mm
The BSA Optics Edge 2-7x28mm Pistol Scope carries a one (1) year limited warranty. For more information, you can read the warranty information from BSA directly, linked below:
https://bsaoptics.com/warranty-information/
Yes, if you can one of these it will handle the recoil of a S&W 500.
This scope did not have a quick focus feature.
Yes, if you can one of these it will handle the recoil of a S&W 500.
you will need a 1 inch tube for the rings, not sure the marauder pistol has a rail to mount it too.
No, it does not include rings and a mount.