OK, that was confusing, let's get to it. I'm going to keep with the theme of Romeo 5 vs. Romeo 7 because I feel that's relevant in the decision process. Sig Sauer Romeo 7 Review. Weight: 12.6 ounces (Sparc 6.4 ounces, Romeo 5 12.2 ounces) Size: Full size, closer to the Vortex Strikefire.The Romeo 5 is much more than a "home defense" red dot. These are true military grade sights. They can, and do handle extreme field duty. Granted, they are not established to the degree as the standard by which all such red dots are compared, i.e., the Aimpoint Micro, but so far all the torture tests I've seen demonstrate that it should be.Sig Sauer Romeo 5 XDR Predator, Green Dot Sight,1X20mm, 0.5 MOA Adjustment, AAA, M1913, Black Finish SOR52122