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Mossberg 500 upgrades

Discussion in 'Do-It-Yourself & Gear Modifications' started by tnxdshooter, Jan 27, 2018.

  1. tnxdshooter

    tnxdshooter Loaded Pockets

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    So I did an experiment here recently. I wanted to see if the heavy wall 18.5" barrel and the magazine tube with S&J +2 extension from off my 590a1 would fit my Mossberg 500. They mated up perfectly. So I have sold my 500 ghost ring barrel and 5 shot tube and spring on eBay. I've since purchased a Mossberg 835 five shot magazine tube part number 12113p and the Mossberg 835 spring # 12194. I also ordered an s&j hardware mag extension. The mag tube came in as did the spring. I test fitted them when the +2 extension arrived from Canada. I initially tried the s&j follower and spring an was only able to get 6 in the magazine tube. I thought I'd try the 5 round Mossberg 500 spring. Then it hit me and I compared the 835 spring to the 500 spring and it was longer than the 500 but not as long as the s&j spring. So I assembled it all and was able to load 7 rounds of estate and sellier and bellot in the tube no issues. I tested several various brand rounds they all seemed to cycle fine and the s&j delrin follower and the 835 spring load smooth as butter!

    I've also purchased the longer slide action assembly and nut and will be putting a magpul moe forend on it.
    For those curious I did use my law enforcement discount to get these parts at a discounted rate. Long action tube assembly part # is 11603bl and the tube nut is 3408.

    I'm just waiting for my 18.5" accuchoke heavy wall barrel to get here and then I'll install it.


    I wanted this setup like my 590a1.

    I'm gonna be keeping the Mesa tactical stuff and putting it on a maverick 88 project in the future.

    I plan on having the Accu choke barrel magnaported like my 590a1 and the forcing cone lengthened, polished, and the barrel back bored by Aimpro tactical like I did on my 590a1. I'll be running an improved cylinder choke on it like my 590a1.

    I do plan on purchasing the aluminum trigger group for this one.

    Who else has an 8 shot Mossberg 500 with 18.5" barrel? Please chime in if you do.

    I'll be running a magpul sga stock on this one like on the 590a1.



    [​IMG]

    Sent from my RCT6303W87DK using Tapatalk
     
    01bugtruck and Gary Gross like this.
  2. tnxdshooter

    tnxdshooter Loaded Pockets

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    Mossberg sent me the accuchoke barrel finally for my Mossberg 590a1. What they neglected to tell me before I ordered it was that they'd changed things mid production on the 50774 model. They no longer came with the five shot mag tube and thus the S&J hardware extension does not work now. So now I have a 90.00 paperweight for a mag extension.

    So Mossberg is supposedly sending me a 6 round magazine tube for this. It'll look like the pic below and I'll no longer be able to have an 8 shot 18.5" barrel. This irritates the hell out of me. It does not look aesthetically pleasing as the mag tube won't be flush with the barrel. I guess when I get it I'll measure and see how much room I have and see if I can find a +1 extension to the exact dimensions needed. If not I may see if a gunsmith can work something up and cut down a 2 round extension and make it work.

    Of course my 500 will have a magpul sga stock and magpul moe forend.


    This whole experience has soured me on Mossberg. They just kept screwing up and serving me the wrong parts. Then I wait 4 weeks for a :censored: barrel that's totally different than what I wanted or requested.


    I guess I'll be selling my Mesa tactical stuff and not be building a maverick 88 after all as I cannot build it the way I want it. I'll not be buying another Mossberg after this fiasco. [​IMG]

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  3. 01bugtruck

    01bugtruck Loaded Pockets

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    aww...sold my mossy to help fund my daughter G19, surely do miss it!

    such a great firearm.
     
  4. ran23
    • In Omnia Paratus

    ran23 Loaded Pockets

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    I am leery of trying to figure out if this old Western Field Mossberg clone is worth upgrading.