Mossberg M590
Hogue 13" LOP stock and forend from Aimpro
IWC QD micro mount
TacStar Sidesaddle
Brownells enhanced safety
GGG follower
Wolff extra power spring
Laserlyte tri rail mount
Insight M3X with malkoff conversion
DD QD mount
XS big dot
Condor speedy 2 point sling
I have been through many different configurations for my main combat shotgun. I tried ghost rings and liked them (my next shotgun will have them) but found that for extremely close range, they cluttered my view a little. I tried retractable stocks and sort of like them (that next shotgun will have the stock pictured below) but with the Mesa setup, the cheek weld is a bit high for use with bead sights. I also tried Mesa Tactical sidesaddles, and while they are more robust than the Tac Star variety, they dont hold shells as securely and i switched back to Tac Star.
This is the configuration that i have finally settled on, and i think that its here to stay. Now im gonna start on my next one, an 18.5" M590A1!