I am still waiting for Bugs to get the 590M in stock but when the magazines were available I grabbed a couple. These are built like a tank. Nothing flimsy about them. I am pretty sure I could drive a truck over them and they would be fine. Looking forward to actually getting to use them...

Works as discribed, fair price.

Super easy to connect and disconnect from either side. The design makes it so easy to clip into place. Easy, Strong and stable snap in. Depending on the state you live in you can get a 5, 10 or 20 round magazine. Awesome!!!

AS to the quality of the Mossberg magazine - it's built robust and will take some abuse the down side if you can call it that is its
empty weight. They are not light by any stretch if the imagination which on the plus side the magazine will drop clear of the receiver well
speeding up the reload process. I purchased 3 spare magazines in 10 round capacity because anything higher capacity is leaning toward the
ridiculous for handling in my opinion - I have a ShockWave so the smaller overall dimension was the goal.
When I loaded the first Magazine I felt some drag resistance so I took them apart and lightly sanded ( 400 grit) all the sharp edges and turds left
over from the molding process. I then applied a liberal amount of non film silicon/tefon based lubricant. I also think some pure carnuba wax would be
well suited and may try that next if I have issues again.
That done the magazines loaded much easier and they run flawlessly in the shotgun.
I am pleased and would recommend this product but suggest you get them in the 66 to 68 dollar range. They are pricey but the quick change ability
makes up for the cost IMHO especially for a combat/defense shotgun.

My order arrived day early. Package was well packed. I am very satisfied how Buds do business. Kept me informed from ordering to receiving it. Thanks Buds.