AR Float Tube on a Savage Barrel Nut?

[cowboyarcher]

Hi Guys,

I am day dreaming of a project and am unsure if it is possible. I'm looking into the possibility of building a bull pup chassis for a 10/110 Savage based rifle. I am thinking that given the number of AR15 free float tubes on the market, I might be able to integrate one for the forend of the chassis.

So the question is this, could a barrel nut with 1.05"x20tpi thread be fashioned to accept an AR15 barrel nut with 1.25"x18tpi? I am just unsure whether or not there would be enough material to maintain the integrity of the nut?

Thanks all and God bless!

 

[M4Builder]

Re: Machinist Help?

Go with a tube that has a rail on top. From my experience, I think it would be easiest with a DD MFR12.0 or 15.0 because it has an inner ring on the inside that you could take out and have a machinist make a replacement inner ring to work as an adapter. Since it's a Savage action, You could have the inner ring able to take the place or fit up against the recoil lug and be secured by the barrel nut.

 

[cowboyarcher]

Re: Machinist Help?

I was just thinking that with an MI Gen 2 SS rail all I would need is to have a nut made with the od matching the id of the tube. It's a very simple mount, but I think it would be effective, and light to boot.

Another issue is that on a bull pup, the scope would have to be mounted on the free float tube. Do you see any issues retaining 0, so long as the tube is sufficiently mounted?

 

[cowboyarcher]

Re: Machinist Help?

There is a photo of the nut here:

http://www.midwestindustriesinc.com/index.cfm?fuseaction=category.display&category_ID=450

Thinking just have it made smooth, w/o the tabs for alignment. Slide the hand guard on and level it, then maybe add a set screw or two to help keep it from rotating. . .

 

[M4Builder]

Re: Machinist Help?

I put one of those on a rifle yesterday. I don't think they would hold up the way you would want to mount it.

https://danieldefense.com/rail-systems/modular-float-rail/modular-float-rail-12-0.html

That rail, towards the left you will see some hex screws in the body, what I was saying is you could replace the ring right there with an adapter so you could mount it like a recoil lug between the action and the barrel nut and have a very secure, square hold of the rail.

 

[cowboyarcher]

Re: Machinist Help?

Oh I see what you are getting at. I had not thought of mounting it between the recoil lug and the barrel nut. . . Hmmm. . .

What advantage do you see placing it there over directly to a modified barrel nut?

 

[M4Builder]

Re: Machinist Help?

A more secure hold an not having to worry about it coming loose after several hundred rounds or just from handling it. And it would be a lot easier to get it squared up and staying square to the action since you plan on mounting your optic to it.