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 Post subject: 940 vs 930
PostPosted: Wed Jan 13, 2021 7:09 pm 
Field Grade

Joined: Tue Feb 13, 2018 8:45 pm
Posts: 59
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Got my 940 today and comparing it to my 930 field with the or3gun kit in it. Hopefully my pics come through. The 940 is crazy similar to the Or3gun kit in 930 field model so I believe it should be a 2000 rd gun.I also have a pic of the standard gas system. It wont let me post pics yet so I have to downsize them. I will add them as soon as I get that done. The top one is standard 930 gas system. The middle is a 940 gas system. And the bottom is my Or3gun set up. The barrel band also has scallops in it and the forearm and retainer are different. Will have more pics soon. This post is not about cleaning your gun. This is about a comparison between an aftermarket gas system compared to the factory 940. For people who do not want to spend te money on te 940 there are options out there. Jerry Miculek has a video where he said the factory piston and spacer will work in a 930. So I will be trying that too. More than likely I will be making a video for you tube in the next couple months after I get a bunch of rounds through them both. For excellent cleaning videos look for te Jerry Miculek videos.
I do know my or3gun setup will got to 1500 rds before it needs to be cleaned so I am looking forward to the 940.




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Last edited by Pgeurts on Sun Jan 17, 2021 3:20 pm, edited 4 times in total.

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 Post subject: Re: 940 vs 930
PostPosted: Wed Jan 13, 2021 8:31 pm 
Field Grade

Joined: Mon Jun 10, 2019 8:15 pm
Posts: 45
...


Last edited by 47MolineRTU on Thu Jan 14, 2021 7:14 pm, edited 1 time in total.

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 Post subject: Re: 940 vs 930
PostPosted: Wed Jan 13, 2021 8:42 pm 
Field Grade

Joined: Tue Feb 13, 2018 8:45 pm
Posts: 59
47MolineRTU wrote:
Why do you say 2000 round gun? I have around that many rounds through my 930 and functions like new, with minor finish wear.

I meant intervals between cleanings. A standard 930 needs to be cleaned every 500-600 red.


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 Post subject: Re: 940 vs 930
PostPosted: Wed Jan 13, 2021 9:13 pm 
Field Grade

Joined: Mon Jun 10, 2019 8:15 pm
Posts: 45
...


Last edited by 47MolineRTU on Thu Jan 14, 2021 7:14 pm, edited 1 time in total.

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 Post subject: Re: 940 vs 930
PostPosted: Wed Jan 13, 2021 9:20 pm 
Field Grade

Joined: Tue Feb 13, 2018 8:45 pm
Posts: 59
47MolineRTU wrote:
Every time I get home from shooting I give it a good wipe down cleaning, take out the barrel, bolt, trigger group and piston. Then complete teardown to clean mag tube, recoil tube, disassemble bolt a couple times a year, or after shooting in rain

I think you missed the point.


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 Post subject: Re: 940 vs 930
PostPosted: Wed Jan 13, 2021 9:58 pm 
Field Grade

Joined: Mon Jun 10, 2019 8:15 pm
Posts: 45
...


Last edited by 47MolineRTU on Thu Jan 14, 2021 7:13 pm, edited 1 time in total.

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 Post subject: Re: 940 vs 930
PostPosted: Thu Jan 14, 2021 6:52 pm 
Field Grade

Joined: Tue Feb 13, 2018 8:45 pm
Posts: 59
47MolineRTU wrote:
lol, i think we are both ignoring each others point. I would never let my gun run dirty until it quit working so would never know how many rounds it can go without cleaning.

It's my post you missed the point.
I will be putting this up against my 930 to see how long the 940 will go before it stops. I will
Be using my or3gun components in my 930 to make it fair. I already know the stock 930 is good to 700 red max depending on shells.


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 Post subject: Re: 940 vs 930
PostPosted: Sun Jan 17, 2021 12:34 pm 
Field Grade

Joined: Tue Feb 13, 2018 8:45 pm
Posts: 59
Ok here are my impressions. My 930 and my 940 are very similiar. Trigger groups are essentially te same although the 940 has plated parts in it. Magazine tube on the 940 is plated and has a 9 rd extension 930 is not plated. Both come with 3 chokes but te 940 has briley extended chokes 930 has standard tubes. 940 chokes are M\IC\C and te 930 has I\M\F. The receivers are different the 940 has a massive loading port and the 930 does not shell elevator is also different. On the 940 barrel the gas tube is different it has scallops in it. The gas pistons are also different te 930 has the 2 rings that sit on each other. The 940 piston is a 2 ring design only the outer one is now removeable. There are also scallops in it.. so my impressions is the 940 worth it YES.
To make my 930 run the way a 940 does here is what it cost
Or3gun duck hunting spacer tube and other parts $175
OR3GUN piston $40
Mossberg 930 $500
Extended choke tubes $100
$815 total and I do not have the plated mag tube and trigger.
I do not have the Mag extension
Or the oversize bolt handle.
My 940 was $900 with all the machining and every good you could want.
I am going to make a video about this because I cannot get the pics small enough with good resolution.




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