No Name 870: Mesa tactical Shell holder and optic install

Installing a Mesa Tactical Polymer sure shell holder with integrated accessory rail and a Crimson Trace red dot sight on the No Name Remington 870 shotgun from the TL Racker video.
If you have a suggestion on this projects name, please comment below.
Are there any opinions of coatings? My next phase is most likely going to be parkerizing, I'm torn between a brighter Zinc and staying with a dark tone Manganese to match the polymer shell holder.
www.mesatactical.com/products...
www.crimsontrace.com/products...

[@nateb9346]

Do you notice any play in the rail? I have mine tightened down as tight as possible and there is slight up and down play.

[@bitaarmaments8004]

Mine was tight but being polymer, I could see there being an out of spec variance. If the slop is up and down between the mounts, the variance is probably in the angle of the rail/mount. If it’s forward and back, it’s probably the screw or retainer / slot are out of spec. Might be worth contacting Mesa and see if they can help determine if their product needs to be made right.

[@nateb9346]

@@bitaarmaments8004 agreed