I'd say it was pretty close....at least enough for me to not notice....
Here are better pictures and a better description of the add-ons:
This is my Mossberg 930 JM Pro 12 gauge shotgun with an 8+1 capacity.
The rail system is the Rhino top rail and the Bobcat side and bottom rail from Elite Tactical Advantage.
The grip s are a PTK Ergonomic Pointing Grip & VTS Versatile Tactical Support from FAB Defense.
The light is a BARSKA Red Laser with 200 Lumen Flashlight.
Finally, the reflex optic is a TRUGLO Reflex Red Dot Sight Red and Green 4-Pattern Reticle.
The only other things I'd like to do to this is replace the charging handle and follower, and get a Mesa Tactical buttstock with pistol grip, as the length of this buttstock is juuuuuuuuust a bit too much.
I got the reflex optic from my dad, who picked it up at a local gun show for around $50, so I'm not going to be totally surprised if I put 100 rounds through the weapon and the glass falls out, as some of the reviews I found stated.
I don't see myself spending $400-500 on an Eotech, at least not anymore.
I can't imagine that there isn't a decent optics maker that has something out on the market that won't fall apart for $50-150.
I mean, its a shotgun for christ sake, I don't need 1 MOA accuracy at really any distance beyond 25 feet, and even that is a stretch.