What year did the 590A1 debut in?

[lazarus86]

I know the 590 goes back a few years (late 80's?) but what year did the 590A1 version come out in? Who were the ones who put forth the extra requirements for it over the regular 590?

 

[old mossy]

They are all based on the 500 platform.
http://en.wikipedia.org/wiki/Mossberg_500

 

[John A.]

Here is the info you are asking for.

http://en.wikipedia.org/wiki/Mossberg_5 ... odel_590A1

viewtopic.php?f=22&t=243&start=0

As for the specific year, to my knowledge, the Navy started acquiring the slightly updated A1's in 2004 as per the Mil-Std-3443 shotgun performance requirement contract.

 

[LAZY EYED SNIPER]

^ This...