u/Sasquatch1916

Military/Police shotguns are my jam. Winchester 1897, Ithaca DSPS, Mossberg 590A1, Remington 870 Police Magnum

Picked this up from the ffl today and it came with two OEM mags that appear identical but one doesn't drop free. Are there any common issues to look for with these? I stripped the frame down and cleaned everything in the ultrasonic already with no change.

Also I've gotta say I'm not a fan of the adjustable sights. I wish trijicon still made sights for these models.