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DML · August 28, 2002, 11:47 PM

The 500 has a magazine with a closed end. The barrel fastens to the end of the magazine tube with a thumb nut.

The 590 has an open ended magazine tube and the barrel is held in place with an end cap. The 20" barrel of the 590 usually has a bayonet lug. (Whoopie)

The receivers are pretty much the same.

There was a 500MIL or USA model that was actually a 590. It gets confusing sometimes.

There are numerous variations of both models. Various finishes and barrel lengths. Take a look at the Mossberg website for more info.

August 28, 2002, 11:47 PM	#2
DML Senior Member Join Date: November 24, 2000 Location: Aridzona Posts: 257	The 500 has a magazine with a closed end. The barrel fastens to the end of the magazine tube with a thumb nut. The 590 has an open ended magazine tube and the barrel is held in place with an end cap. The 20" barrel of the 590 usually has a bayonet lug. (Whoopie) The receivers are pretty much the same. There was a 500MIL or USA model that was actually a 590. It gets confusing sometimes. There are numerous variations of both models. Various finishes and barrel lengths. Take a look at the Mossberg website for more info. __________________ Experience is what you get when you were expecting something else.