I have had both. The Mossberg optics ready gun is top notch, the TriStar is very good also. I prefer the Mossberg as I have let a kid shoot my TriStar equipped with a Sumtoy Base and Burris FF3 and the sight sits just a little high, for this particular youngan, to get a good solid cheek weld. The Optics ready Mossberg Holosun, that came on the gun, sits perfect for a kid. For an adult, with a fat head like me, the TriStar cheek weld is not an issue.
Ridge Rooster