Heavy Barrel Fit Mossberg 500? [Archive] - Glock Talk


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01-08-2011, 14:34
I have a Mossberg 500, 18.5" barrel riot gun with twin action bars. It's due for a freshen up and I'd like to install a heavy barrel. I contacted Mossberg and the customer service person said the heavy barrel will not work on my receiver and will only work on a 590A1 receiver.

Can anyone here confirm this?

01-08-2011, 16:00
Not exactly. The heavy barrel will fit on the reciever. However, the magazine tube and barrel lug arrangement are different. You would have to get a 590A1 mag tube to match your barrel length. A 5 round mag would work on the 18.5" barrel and the 8 round would be needed for the 20" barrel, assuming you weren't going with the 14.5" which uses another mag tube.
The 500/590/590A1 use the same receivers, they are just roll marked differently. So while the Mossberg drone you spoke with wasn't completely wrong he wasn't completely right either.

01-08-2011, 19:50
This makes a lot more sense to me. Now I just gotta price the mag tube. Hey! Anybody in the market for a heat shield? I'm not gonna need mine anymore (heat shield won't fit a heavy barrel).

01-08-2011, 21:09
Or find one of the heavy 500 barrels Havlin Sales had a couple of years ago.

18.5", heavy barrel with screw in chokes. I picked up 2 of them when they had them for $69.95.

01-09-2011, 17:17
Other than a 500Mils barrel your going to have to change to a 590 mag tube.