Almost perfect! - Magpul Industries SGA Shotgun Stock for Mossberg 500/590/590A1

I would have given this a 5 star, however, it gets only a 4 star because you do need to dremel out a little of the stock where the back of the trigger housing is. If you do not you can not pull the trigger out when breaking down the Mossberg 590. You will need to shave off about 1MM of the stock where the trigger housing is. If you decide not to do that you will need to loosen up the stock to remove the trigger housing when breaking down and cleaning your Mossberg 590.