I was gifted a New Haven (Mossberg) 600AT that was my Grandfathers that he bought in the early 80's and it was never shot.Not knowing much about these things, Should I have it looked at before I try to fire it? Should it be cleaned?. It for all intents and purposes was unboxed and put in a bag and sat there for 30 years.Thanks for any info you may be able to give me.

 

 

 

Clean it, oil it work all the parts bolt, slide etc.. And then shoot it!

Good luck!

Great piece made in America!

American Workhorse.........Mossberg.

Nice gun! Hopefully it was stored in a dry place. Take it apart and post pictures of the insides.

 

Let me know if you want to sell it!

Thanks everyone.I'll never sell it because it belonged to my Grandfather. It has been dry and in a safe for 30 years.it looks and feels like its in great shape.

Take it apart. Oil it up, work the action then go have some fun!

By the way, it's the exact same as a Mossberg 500 so any parts or accessories for a 500 will fit on that.

By the way, it's the exact same as a Mossberg 500 so any parts or accessories for a 500 will fit on that.

That's good to know, thank you . Any suggestions on must haves as far as parts and accessories?

Well what do you want to use it for? SGs are very versatile.

I have the exact gun and it's great to know the 500 parts fit it. Be aware that the plastic safety slides on them are very weak and often break. mine broke and has to be replaced, I called Mossberg and they want me to ship them the gun as they will not ship the part. I think there are a lot of aftermarket steel ones available. You should get the 18" barrel for it as well.

As for accessories...

 

Chokes are nice. If you don't have a removable choke, then you may want to buy a 26" barrel for skeet or trap if you're into it.

 

An 18" barrel may be nice if you want to keep it in a closet locked for home defense.

 

There's also stupid tacticool crap but I don't like that route.

600AT typically didn't have screw in chokes but due to the versatility and interchangeability yours may not have the original barrel. MOST 600AT's shipped with Mossberg's version of a Polychoke. (google it)

 

A metal safety "button" or "slider" is available from either Numrich or Brownell's as I recall. I have a plastic safety on another Mossberg and it sucks in comparison to the metal...

 

Must have parts?? Well... rifled barrel with cantilevered scope mount, 28" bird barrel, 18" home defense barrel, muzzleloading barrel, I would start with those, just keep surfing ebay, gunbroker, gunauction and craigslist and you will find what you're looking for eventually at a decent price.

 

other accessories? Side saddle round holder is nice.