Mossberg 835 barrel on a mossberg 500....it can be done

[55fairlane]

So I had a stupid attack, and bought an 835 barrel for my 500,got it cheap so let's make it fit.

The problem is there is no way to hold the barrel in place

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So a cap is needed. No big deal.

The machining is straightforward

Take 1 1/4 diameter round, face clean,centre drill,drill thru with a 7/16 drill, counter bore .990 wide by .320 deap , part off at 3/4th long

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Take to the milling machine, drill for the detent ball with a number 2 centre drill, turn on it's side drill for a 1/4 -20 set screw

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Install on your barrel with a 7/16-20 cap screw hand tight,screw the set screw down.......done!

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Now for a couple neat tricks , when tapping thru holes,use a 2 flute tap,you do not need to reverse and brake the shaving

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Here is quick easy way to find centre on round stock,when close is good, hold you scale between the cutter and part, move table until late part is optically level....good enough

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Now for some cold blue and a turkey choke

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[1911ly]

That's ingenuity at it's finest. I really like the machining tips too. I have been putting off buying a set of 2 flute taps for a while. They are great for that (didn't know it till now though) and for working with aluminum too. Great work! Thanks for sharing it with the forum.

 

[Cree]

55fairlane,

Very smart and very well done. What does the detent do? Does it help keep the screw locked in place?

 

[55fairlane]

There is detent ball on the barrel,that the factory barrel takedown screw would have engaged to prevent this screw from coming loose as the gun is fited,other wise as you shoot it,your barrel could come loose

So I figured on my replacement I should do the same

Aaron

 

[Mgderf]

My dad always said, "If you don't have what you need, use what you have."
Great work.
Necessity is the mother of invention.

 

[55fairlane]

My dad always said, "If you don't have what you need, use what you have."
Great work.
Necessity is the mother of invention.

And as a tool maker, with a small machine shop of my own,I am very blessed,to be able to do this kinda work

And blessed to be able to share with you......hopefully you all can use this info to get you out of a "jam"

Thanks for the kind words

Aaron