Mossberg silver Reserve 20ga vs Mossberg 500 turkey weight

[NEWYORKHILLBILLY]

I considering a new 20 Ga turkey gun.  I left eye dominate and right handed so I shoot left-handed. I looking hard at these two guns.
The 20ga 500 turkey with  Holosun mounted on it. the 6mm red dot concerns me as possible to big. I never hunted with a red dot.mush cheaper to buy it with red dot mounted then to buy gun then add a red dot.

Mossberg silver Reserve 20ga . I been reading some post on this gun with some problems of POI not allinging with both barrels. this concerns me on this gun.

does any one have a weight on either of these guns?