John Doe Posted December 25, 2023 Share Posted December 25, 2023 I mean, anything is possible, right? But could this realistically be done? It would pass NFA and be treated like a shockwave. 1 Quote Link to comment Share on other sites More sharing options...
alpha 33 Posted December 25, 2023 Share Posted December 25, 2023 I like the concept, but not being a gunsmith I'm wondering how the recoil tube would work? Alpha33 out..... 1 Quote Link to comment Share on other sites More sharing options...
John P. Posted December 25, 2023 Share Posted December 25, 2023 Yeah, couldn’t be a thing. Better chance with the Beretta 1301. 1 Quote Link to comment Share on other sites More sharing options...
alpha 33 Posted December 26, 2023 Share Posted December 26, 2023 looking at your picture above, it looks as though a cap screw was used as a charging handle ?🤔 1 Quote Link to comment Share on other sites More sharing options...
StrangerDanger Posted December 27, 2023 Share Posted December 27, 2023 Shorter the overall length in a tube fed gun, the fewer rounds you have available to feed from. So you end up with diminishing returns on a semi auto. At a certain point, you might as well just get a short side by side and eliminate the complexity of the semi auto. On the M4, you'd be stuck working around the receiver extension, so you're always going to have that awkward angled extension poking out. 2 Quote Link to comment Share on other sites More sharing options...
benelliwerkes Posted December 27, 2023 Share Posted December 27, 2023 On 12/24/2023 at 11:39 PM, John Doe said: I mean, anything is possible, right? But could this realistically be done? It would pass NFA and be treated like a shockwave. Negative, Ghost rider. Your depiction is that of weapon that appears to be less than 26" in OAL and a barrel of less than 18"; and not intended to be shoulder fired. It would never have been manufactured as a shotgun by definition, ergo, it never could be a "short barrel shotgun" in NFA parlance. IF less than 26" OAL with birds beak styled grip it would be NFA classified as an AOW, "any other weapon", requiring NFA registration with tax stamp etc. From the BATFE NFA Handbook: 2.1.1 Shotgun A shotgun is a firearm designed to be fired from the shoulder and designed to use the energy of the explosive in a fixed shotgun shell to fire through a smooth bore either a number of projectiles or a single projectile for each pull of the trigger.10 A shotgun subject to the NFA has a barrel or barrels of less than 18 inches in length. 2.1.2 Weapon made from a shotgun. A weapon made from a shotgun is a shotgun type weapon that has an overall length of less than 26 inches or a barrel or barrels of less than 18 inches in length. Featuring a 14-inch barrel, “birds head” pistol grip and an overall length of 26.37 inches, the Mossberg 590 Shockwave (and Remington TAC-14) does not fall under the purview of the National Firearms Act (NFA) and does not require additional paperwork or the payment of a tax stamp for transfers. The obvious technical design hurtles for the semi-auto depiction in such a small configuration with a birds beak have already been mentioned. My Remington 870 with 7" barrel was born as a registrable NFA "any other weapon", AOW; not a shotgun. Add a shoulder stock and it is still an AOW, as it was never born a shotgun, thus can never be a "short barrel shotgun". 2 Quote Link to comment Share on other sites More sharing options...
benelliwerkes Posted December 28, 2023 Share Posted December 28, 2023 (edited) So, going the other way, Shockwave to short barrel shotgun, a Mossberg .410 and 20 ga. Less than 26" OAL, barrel < 18", intended to be shoulder fired. NFA "short barrel shotgun". These were submitted on a BATFE Form 1 ("mfg. a firearm"). That is, I manufactured this Short barrel shot gun, it was born a shotgun, no longer a fall thru the NFA cracks Shockwave configuration. Edited December 28, 2023 by benelliwerkes 1 Quote Link to comment Share on other sites More sharing options...
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