Mossberg is junk they said. Remember Win or Rem, but not cheap ol Mossberg..
Some shotguns like Rem Mod 1100 & Ithaca Mod 37s come with slick actions from the factories.
Both my Mossberg 500s were inesxpensive & had rough actions from brand new.
The owner of the LGS I got them from knew I worked on guns & asked me if I deflashed
my Model 500s. What do you mean Deflash them?
Tear down, clean ( Brake Spray) then with the small Dremel carbide burrs remove all flash
& large seems that keep the action parts from running smoothly together. Flash is leftover
& not removed to keep cost down. You can finish the job & have a slick Shootie sooner
& cheaper than shooting Round$.
Other than that hold trigger back & pump like the Ithaca Mod 37 has both my Mossbergs run smoothly
& feel like they both have been hunted & shot a lot. 20 minutes of flash metal removal
is well worth the time & anyone with a Dremel & small burrs can do this. Really they are both like new
7 rds & an 18.5" bbl do not make for great quail hunting