Would anybody buy a kit to make a double barreled pump shotgun?

to answer torrents question about the mag tube all 870 tubes are the same except the special field models which are shorter and require there own barrel. they were made in the eighty's but are no longer produced .
 
farmer47 said:
to answer torrents question about the mag tube all 870 tubes are the same except the special field models which are shorter and require there own barrel. they were made in the eighty's but are no longer produced .
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Thanks! That makes things vastly easier. I only own 2 Grizzly Mags and I am pretty sure all them dimensions are the same except for the magazine.

A lot of great other tips on here too, thanks guys. I will look and designing a unified shotgun stock mount in Solid Works; should it be Centered or behind a particular gun?

I will also look at making it easier to use the trigger, but I am not sure how I would do that (maybe an extender for the front of it?).
 
boomer271 said:
I seem to remember that, in the 80's, Soldier of Fortune magazine had a writeup on a pair of Remington 1100s linked to make a beast they called the "Irimu" after an African were-leopard or something.
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Anybody else recall this or can find the original information?
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As I recall, it was termed the 2200. It was (Second Chance's) Richard Davis', I think.
 
I know this isn't a shotgun....

But it is a company that "stuck 2 together".

ht tp://www.blaser.de/R-93-Duo-Hamed.750.0.html?&L=1

And actually, shotgun barrels are available for the R93... so you probably could get a shotgun version, if you had the same money as the person who commissioned this one.

HAR! I'd kill for one. :D
 
I think if I were looking for a total overkill shotgun I would be getting a
Truvelo Neostead 2000. It would hold almost as many rounds as two
870s with mag extensions. And doesn't look like a dogs breakfast.
 
I did a search for the Irimu and I ended up finding the original build notes by Deer Hunter and details for the shotgun in the OP's picture on The High Road. I like it, it is a solid design, it makes sense and doesn't do anything that would damage the two original shotguns. Plus, it works.

The kit would be simple; it requires only extended pins for the receiver, kind of making a sidesaddle mount that holds another shotgun, and a brace/adapter. thingummy to link the two tubes together with a single pump forend. The original forend was made out of a hardwood baseball bat, but it worked. I would buy a kit that does this, then put it away until I picked up a couple of HP-9 shotguns to play with. Give me a price and I'll send you the money when you're ready to go.

As a kit, there is no fooling around. I already know it is going to work without having to change out the pins holding the receivers together -- this already broke on the prototype, they fixed it and solved the problem. The baseball-bat ugly forend will have something a little nicer. And it will still be the coolest shotgun on the block -- until I get my next one.
 
boomer271 said:
The kit would be simple; it requires only extended pins for the receiver, kind of making a sidesaddle mount that holds another shotgun, and a brace/adapter. thingummy to link the two tubes together with a single pump forend. The original forend was made out of a hardwood baseball bat, but it worked. I would buy a kit that does this, then put it away until I picked up a couple of HP-9 shotguns to play with. Give me a price and I'll send you the money when you're ready to go.
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"A couple of HP-9's " would not work, one of the recievers will have to be a left hand ejecting 870. As far as I know, none of the knock-off's are available in lefties, though I could be mistaken. Has anyone had any thoughts on how to make both triggers shootable from the right side (or the left for the wrong handed)? I suppose the safeties would have to be linked as well.

I'm not trying to talk anyone out of this project, just trying to point out some obstacles in advavce.

Jim
 
Workin Man said:
"A couple of HP-9's " would not work, one of the recievers will have to be a left hand ejecting 870. As far as I know, none of the knock-off's are available in lefties, though I could be mistaken. Has anyone had any thoughts on how to make both triggers shootable from the right side (or the left for the wrong handed)? I suppose the safeties would have to be linked as well.

I'm not trying to talk anyone out of this project, just trying to point out some obstacles in advavce.

Jim
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Very valid points. Definite obstacles, but overcome at least once, since there was a prototype.

Realized the lefty problem pretty much as soon as I posted it -- and it just wouldn't be "right' to marry a left-handed Remmy and one of those morphodite HP-9 creations! So it might take a little longer to find the right set of irons to start the project. But the kit could live on my shelf in the meantime along with all the other "future projects."

The trigger problem was originally solved -- according to the thread on The High Road -- by simply installing a large "shoe" on the off-side trigger. Another solution might be to move one of the triggers slightly forward, as well as mounting the shoe.

The safety's could be set up by one single elongated pin going through both, or linking both together -- the trigger mechanism on the "lefty" might be modified by switching with a right-hand setup if it fits and functions. Otherwise I believe the lefty safety pushes in from the left - not sure though, haven't seen or played with a lefty. If this isn't possible, something else could be developed. Again, the original notes on The High Road could be consulted.

Just thoughts, mainly to say that I am still interested - I'd like to find out how these challenges are overcome!
 
darkshadow said:
THAT would be a long tube.

No, I was replying to Claybusters interesting idea about using two 1100's (semi's) not 870's
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Hahaha. >2.5 million inches I would assume. 39 miles of tube..

Sorry, my bad. There are still people that think/believe that manually operated firearms have to be restricted to 5 rounds if they are center fire.
 
Not to hijack but I have always thought 2 over/under 12 gauges attached close side by side would be a cool howdah gun. Maybe a pair of matching Baikals. With any of these the stock is the hard part to have look right.
 
Update time!

I got a local machine shop to make the front magazine tube bracket. I tested it out on the 2 Grizzly mags I own and it fit perfectly, even though it was machined about a millimeter too thick.

Tk5Y5.jpg


Here is the preliminary design of the pump handle:

LRs0c.jpg


Here is the front profile:

mm7Y3.jpg


I made it that shape because of the extra width. I'm not sure how comfortable that will be to hold, but I am going to get it rapid prototyped so I can get a feel for it. The idea behind the short height is the fact that it is so much wider than other grips. I have heard some call for a pistol grip, which is a great idea, so I will design it with screw mounts to attach an accessory rail so you can add one yourself, as well as accessories.

The trigger pin designs are as follows: (I did not draw the threads on the male screw or in the female socket)
gXEbd.jpg

lDhLZ.jpg

r89T8.jpg


The trigger group pins are about the size of the regular trigger group pins, only with an Allen key on the outside. One will have a screw and the other will have a socket, and they will screw into each other so the shotguns are completely flush. the reason for 2 short pins instead of one long pin and a nut is the fact that it will be a lot easier to install the kit and it will look better.

One question to the CGN community: Does anybody have a left and right ejecting Remington 870 shotgun I can test this kit put on? I only have grizzly mags so I can only test for dimensions, not operability.

Any other suggestions guys?
 
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