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Yes, it is. The 600AT was simply sold under the New Haven name instead of the Mossberg brand. It's a Mossberg 500A (12 gauge) intended for targets and hunting (long barrel and great wood). All Mossberg 500 parts fit it.
Yes, the 600 At is the same model as the 500 series, but with a different designation for sale in New haven stores. So yes, all Mossberg 500 after market or OEM parts will fit it.
You will need to change barrel's, a accu choke is not on a slug barrel.
$175
gun shop, gun show, want ad
Pawn shop, gun show, want ad, gun shop
Mossberg 500Not sure exactly how old, but it's really a Mossberg 500A. I think it's just the store brand from Sears Roebuck. I found one that was up for sale. Here's the info:Mossberg/New Haven 600ATCondition: Never fired. Price: $350.00 The New Haven 600AT series is basically the same as the Mossberg 500 series. New Haven is/was Mossberg's promotional line that was sold by other retailer (Montgomery Wards, Western Auto etc). Most all parts interchange IIRC. Mossberg barrels are rather inexpensive at gunshows and shops as there are so many around. This barrel comes with a factory installed "C-lect" Choke -- the cousin of the poly Chock of the 60's. Beautiful firearm and a fine shooter of the "old" family of firearms made by a Tradename Manufacturer for a company and their private label "New Haven". Kinda like Stevens making guns for SEARS. I think Montgomery Wards went out of business about 10 years ago, so one with New Haven one it you can probably safely assume is at least 10 years old.Please note $120 or so is a more realistic price for a used one. Check on gunbroker or auctionarms
I am a big fan of this shotgun, have had one for many years. Also added a deluxe model to my collection. As far as value is concerned it is the same for everything else, "whatever someone is willing to give you for it." The value that I would put on it goes like this, Excellent condition, poly choke, 200-225, used vg condition175-200, and most everything else between 100 and 175 dollars is fair price for shotgun. You see its not that good of a gun as far as manufacture is concerned, its good quality, but not the same as a Browning or Beretta. Its a hunting shotgun, you can put meat on the table and have fun shooting clay birds on occasion, it is just a shotgun all the same. Other than having one because it was your "first" gun, and reliving your youth. Nothing special about it. But, I like mine because it was my first and I still have it.