Mossberg shockwave sized mad Max style SxS

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Why has nobody made a SxS "firearm" like the Shockwave with a 14" barrel and a bird's head grip? I feel like that would sell really well, it'd be like a mad Max style "sawed off" shotgun.

Come on gun manufacturers!
 
Because making a quality SxS and regulating the barrels far exceeds the cost of what the low sales would be able to recover. As has been mentioned, Pedersoli and others do make Howdah pistols, and they don't exactly fly off the shelves.

$200, an ATF form and a long wait, will allow you to make your own Mad Max SxS SBS.
 
The judging from the Mossberg Shockwave and the Henry Axe an "other firearm" capable of firing shot gunshells has to be 26" overall.

There were short stocked 12ga shotguns just over 26" with 18.5" barrels on the market decades ago marketed as The SOB and The Brute, legally shotguns, that didn't catch on.
 
I looked into the OP's question a couple years ago when the Shockwave came out. The answer is that the relatively short receiver on a single or double barrel break open shotgun prevents the barrels from being shorter than 20 or 21" using a pistol grip stock. In other words, if you cut the stock down to a pistol grip/birdshead grip, the barrels have to be about 20" to meet the OAL of 26" as an "other" firearm. And with 20" bbls it is still a shotgun. It is still the same OAL as a Shockwave but also still a legal shotgun. Therefore you could cut a single/double barrel down to Shockwave length as long at you kept the barrels at least 18+" and the OAL at least 26". But whatever you take off the barrels you have to add to the stock and vice versa.

So technically you could have 14" bbls on a break open SG but the receiver would have to come from the factory without a stock and the pistol grip would have to be extended to meet the 26" OAL.

Examples of Shockwave size breakopens...not mine
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The judging from the Mossberg Shockwave and the Henry Axe an "other firearm" capable of firing shot gunshells has to be 26" overall.

There were short stocked 12ga shotguns just over 26" with 18.5" barrels on the market decades ago marketed as The SOB and The Brute, legally shotguns, that didn't catch on.

Yes, agreed, to be an “Firearm,” a.k.a. “Other,” it has to be 26” or longer, OAL.

I remember handling an FIE Brute, in the Eighties, in a Texas gun shop, before Texas had a handgun carry licensing system, and short-nut-not-NFA shotguns had a following. It had, IIRC, 18” barrels, so, to remain a legal long gun, @ 26”, a shock-wave-ish grip would have been too short, so, it had a stock just long enough to reach that 26” OAL.

I have no disagreement with the OP’s general idea. It just cannot be an Other Firearm, if faithful to the size of the movie wreapon.
 
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I looked into the OP's question a couple years ago when the Shockwave came out. The answer is that the relatively short receiver on a single or double barrel break open shotgun prevents the barrels from being shorter than 20 or 21" using a pistol grip stock. In other words, if you cut the stock down to a pistol grip/birdshead grip, the barrels have to be about 20" to meet the OAL of 26" as an "other" firearm. And with 20" bbls it is still a shotgun. It is still the same OAL as a Shockwave but also still a legal shotgun. Therefore you could cut a single/double barrel down to Shockwave length as long at you kept the barrels at least 18+" and the OAL at least 26". But whatever you take off the barrels you have to add to the stock and vice versa.

So technically you could have 14" bbls on a break open SG but the receiver would have to come from the factory without a stock and the pistol grip would have to be extended to meet the 26" OAL.

Examples of Shockwave size breakopens...not mine
View attachment 988452
View attachment 988453
View attachment 988454

I have been waiting for a “just-right” pre-owned double shotgun, to appear on the rack at a local gun store, to serve as the base weapon for such a project. I do not want cheap junk, so, a somewhat nicer gun, but perhaps with a bubba’ed stock, is my desired target.
 
There is a pistol version of the Chiappa Triple Threat shotgun. I saw one at a local shop, but it was $900 or so and I wanted the rifle version. I think it still had an 18" barrel, at least the one I saw.
 
I have been waiting for a “just-right” pre-owned double shotgun, to appear on the rack at a local gun store, to serve as the base weapon for such a project. I do not want cheap junk, so, a somewhat nicer gun, but perhaps with a bubba’ed stock, is my desired target.

I have a 4 or 5 double barrel shotguns inherited from my dad. They aren't high end, Stevens and various hardware store models made by various other manufacturers but they a steel and walnut and better than most of the junk sold today. I thought about cutting one of them down but I don't have the heart to and I don't really need a short double barrel.
 
Wow, well I didn't realize that the barrels would still have to be really long to do what the Shockwave did. Thanks for sharing those pictures and that explanation.
 
The reality of these pistols is far from what you see on the Magic Screen. Difficult to aim, with massive recoil, definitely not to be fired one handed, as you so often see depicted, in the movies. These super short SXSs may look cool, but they are miserable, to actually shoot.

Get any coach gun, and fire it, one barrel at a time, with only one hand. (do be very careful) Now, try to imagine firing the same gun, with a pistol grip, and even a shorter barrel, rocking the muzzle blast.
 
The reality of these pistols is far from what you see on the Magic Screen. Difficult to aim, with massive recoil, definitely not to be fired one handed, as you so often see depicted, in the movies. These super short SXSs may look cool, but they are miserable, to actually shoot.

Get any coach gun, and fire it, one barrel at a time, with only one hand. (do be very careful) Now, try to imagine firing the same gun, with a pistol grip, and even a shorter barrel, rocking the muzzle blast.
;

I have a mossberg 12 ga shockwave. It is not fun to shoot. I've shot cut down shot single shot 12 and 20 ga's similar to the one in my above photo (legal bbl length but pistol grip) The 12 ga was brutal, the 20 ga wasn't too bad. If I was to opt for a cut down double barrel I would chose a 20 ga.
 
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