Vortex optics are made in japan as well as the Philippines.
These optics are water resistant.
Yes indeed, so long as the shotgun has an appropriate mounting solution installed!
The Vortex SPARC Solar 2 MOA Red Dot Sight does not have automatic brightness adjustment but does feature auto activation with motion after auto shut-off, and automatically switches from solar to battery power.
The Vortex Micro 3x22mm Magnifier lower 1/3 mount that comes with it will put the magnifier center height at 1.57". If the mount you are using for your red dot puts the optic centerline height at 1.93" you may have some difficulties. However, it would depend on the centerline height of your red dot on the mount if the overall height is 1.93".
The absolute co-witness mount would still sit too high to co-witness with the sights on your POF 5PK Pistol. This optic is compatible with all T1 mounts, so I would recommend using the lowest height mount possible, however, even then we cannot guarantee it will co-witness with your irons.
The Vortex SPARC Solar 2 MOA Red Dot Sight uses the Aimpoint Micro footprint. So any mount for the Aimpoint Micro footprint will work with the Vortex SPARC Solar 2 MOA Red Dot Sight.
Yes, the Vortex SPARC Solar Red Dot Sight comes with two mounts. The low mount will allow for absolute co-witness while the higher mount will allow for lower 1/3 co-witness.
The Vortex SPARC Solar 1x31 mm 2 MOA Red Dot Sight features a 21.2mm objective window. The outside diameter of the objective measures 31mm.
The Vortex SPARC Solar Red Dot Sight does come with the low mount as well as the riser mount.