How Would You Dress Up A Mossberg 590A1?
 

Albeit a 500, I went this way you can do anything you like

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I personally believe a simple pump action shotty should remain simple and doesn't really need all the things I have seen people hang off of them. But a side saddle OR stock mounted shell holder, but not both as pictured below, does come in handy. Heat shield mounted ghost ring sights (not pictured) aren't bad either. YMMV

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A Blackhawk Knoxx stock.

First add a clolapsable buttstock, or a side or top folder. Then a trirail fore end so you can hang a "tacticool" light, laser, and coffee maker off it......:rolleyes:

Seriosly, who needs all that cr@p? Why do people turn a 6.5 lb. shotgun into a 15 lb. monstosity? If the one pictured in the OP was mine, I'd leave it alone. It was made to do a certain job already, why mess with it?

NICE gun Jpyle! Simple, but serious...

My 8 shot 500 wears a pistol grip speedfeed stock, surefire railed forend, surefire e2d light in a vltor mount, and an eotech 512 on a millet saddle rail. Yes it's a heavy gun as mentioned but I'm a big boy and I can handle it. Had the knoxx recoil reducing stock on it for awhile but wanted a better cheek weld with the eotech. Other than that, the knoxx was great too. I train with a vest on and the length of pull is just a hair long with the speedfeed so given that I would get the entry (shorter) model next time. Hope this helps. :-)

I'm in the keep it simple crowd. That's the whole charm of a pump shotgun for me. I noticed you have the speedfeed butt stock. Almost a hundred dollars if purchased seperate. Also, you would loose the 4 round capacity. About the only thing I'll change on mine is the sling and hardware, seems a bit small.

It depends on the guns, use. Like my 870 is my only gun hunting and hd. plain pistol grip is a no no. barrels don't really matter as you can change them very easily. I have the blackhawk noxx stock. I may add an extended tube and mount a flashlight to it and call it a day. I always loose my light in the woods hunting. But my gun never leaves my hand. So like I said. The mods you do toy your gun depends on what you need it to do.