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 Post subject: Mossberg Shockwave
PostPosted: Sun Apr 02, 2017 8:57 pm 
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Joined: Sun Sep 12, 2010 12:45 am
Posts: 33
I bought one as a birthday present to myself. It is a really fun gun to shoot. But I need help with a couple of things....
I want to change the forend to a Magpul MOE forend. I have read that one the 14" barreled Mossbergs you have to modify the Magpul Forend. Does anyone have any firsthand knowledge with this.
I want to replace that itty bitty bead sight with a fiber optic bead.
I am looking for suggestions on what bead to put on it.




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 Post subject: Re: Mossberg Shockwave
PostPosted: Mon Apr 03, 2017 2:42 am 
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Location: It is the tradition that a Kentuckian never runs. He does not have to. (1931)
I was very interested when I googled the Mossberg Shockwave and learned that the so-called "14 inch non-NFA Mossberg 500" is newly available for 2017 from Mossberg as the 590 Shockwave, model #50659. No wonder that you are having fun with your new gun.

I think that this link will help you to modify a Magpul MOE forend, but IMO the Mossberg forend with the strap is safer. Years ago I bought a Mossberg strap on eBay for my JIC Cruiser because I've become attached to my left hand. You are or were an officer and you won't blow your hand off, but you should be nervous letting others shoot your gun without a strap.

You could buy a Tom Knapp fiber optic sight but shame on me, not only do you not need it, you really do not even need the bead your gun has now. For HD confrontations averaging 7 yards or less, you can use the law enforcement-inspired PGO technique linked in my signature. I think that it would be a mistake to practice looking down the barrel to shoot your gun, because you cannot shoot it quickly enough that way if you ever did have to use it in a confrontation. IMO, you should resist the temptation to shoot it like your Wingmasters. But if you are not persuaded then rest your thumb on top of the stock wrist, not over the side, to protect your nose, cheek and eyeglasses. I do not like this because I have weaker control of the recoil.

One more thing for other readers: the Mossberg Shockwave is acceptable to BATFE for sporting purposes but it cannot be concealed on a person or in a vehicle even with a concealed carry licence unless it is registered as an AOW. From the ATF letter on the Mossberg site, "The Mossberg, model 590, serial number V0348718 as described above, is a 'firearm' subject to GCA provisions; however, it is not a 'firearm' as defined by the NFA. Please note that if the subject firearm is concealed on a person, the classification with regard to the NFA may change."

Good luck, BKS. Have fun!

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 Post subject: Re: Mossberg Shockwave
PostPosted: Mon Apr 03, 2017 9:14 pm 
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Location: The Lost State of Franklin
Mossberg uses two differant length forend tubes on the 500/590. Here is what houge's site shows.

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I have a Shockwave on order myself and thinking about replacing the factory forend with a Houge.

The shockwave will go nicely with my Ithaca stakeout and shorty 870.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Tue Apr 04, 2017 1:49 am 
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Location: It is the tradition that a Kentuckian never runs. He does not have to. (1931)
Banshee, you have the best range toys and room to store all of them in the secret back room of your vault. :) I just looked up the Ithaca 37 Stakeout... so nice!

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 Post subject: Re: Mossberg Shockwave
PostPosted: Tue Apr 04, 2017 2:56 pm 
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Can not wait for my new Shockwave. Definitely going to keep the original forend.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 05, 2017 6:30 pm 
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Joined: Sun Sep 12, 2010 12:45 am
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A friend went thru his stuff and found a Surefire forend from a Mossberg 14" 590. He is gonna give it to me.


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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 05, 2017 9:03 pm 
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Not trying to burst anyone's bubble but my training/match-stressed experience has shown that a shoulder-stocked 870P aimed with FIGHT-STOPPING tight 00-buck (FliteControl LE132-00) can miss a me-moving/perp-NOT torso target (=best flip that SHTF) at up to 4'10"-wide home hallway dark circumstances/distances.
Just really PRACTICE/KNOW YOUR load's EFFECTIVE PATTERNING with that Mossy SG's mostly/best(?) hip-fired/held 14" barrel if you're serious about HD.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 05, 2017 9:21 pm 
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The Mossberg Shockwave can be fired at eye level, however it better be fully extended...IMO, this isn't for amateurs...

http://www.mossberg.com/clint-smith-of-thunder-ranch-reviews-the-mossberg-590-shockwave/

https://youtu.be/fM_sqSTg2v8

I personally would not snag it up with a side saddle; I personally would not use FC ammo in it...


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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 05, 2017 9:51 pm 
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Like I said, look at Clint's LONG-TIME-TRAINER/PRACTICED 00-buck patterns at 7-10 yards, you can still READILY miss if you don't aim and just expect movies' "kill(BLOW AWAY!) everyone that's in front of you" with a shotgun effect.

Federal/Hornady FC technology/patterning limits flyers = limits non-BG-hits = liability, so with a further expanding deadly-force pattern with non-FC, aiming is only more critical in mitigating non-BG hits = greater liability...

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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 05, 2017 10:09 pm 
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I have to ask, what can a Mossberg Shockwave (or for that matter, any other non-NFA "other") do that a properly functioning KSG cannot...about the only thing that comes readily to mind is that it can be carried loaded in a vehicle under my jurisdiction's License to Carry Firearms. That said, I give Mossberg credit for offering it, however for a number of reasons it would not be my first choice for HD. Even so, I still want one. Ported, with a tritium bead/front sight :wink:


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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 05, 2017 10:22 pm 
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Banshee wrote:
...I have a Shockwave on order myself and thinking about replacing the factory forend with a Houge...


The Hogue OM forend is my personal favorite on a Mossberg 500/590. That said, I would probably keep the OEM forend (with the strap) on a 14" shorty, unless it also had a supplemental hand stop located forward of the forend.


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 Post subject: Re: Mossberg Shockwave
PostPosted: Thu Apr 06, 2017 6:55 pm 
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62-10 wrote:
I have to ask, what can a Mossberg Shockwave (or for that matter, any other non-NFA "other") do that a properly functioning KSG cannot...about the only thing that comes readily to mind is that it can be carried loaded in a vehicle under my jurisdiction's License to Carry Firearms....
Damn, you included the punchline. If only the KSG had a different first initial.
I drool over the idea of a 14-rnd capacity svelte shoulderable bullpup SG, even though I can tell you first hand that the sensation of a 12GA round lighting up in a chamber right next to your cheek is at first a little intimidating. And I could learn the PG and ergonomically-different racking. But it's the damn ongoing hit-or-miss reliability of that Keltec (I've personally experienced one that worked, one with ongoing various issues, and one that had to be sent back to Keltec to get some remaining rounds out of the tubes :shock: . And in TN, I could legally keep a mag-loaded KSG in my vehicle with my HCP. But they need to be at least $250 cheaper because of that K...

Shockwave buyers really need to ask/decide for themselves: What can a Mossy Shockwave do truly overall BETTER for the better-than-average gun-interested-AND-EVEN-trained/practiced SD owner than an 18.5" now-only+1 tac stocked pump?
While I'm not going to buy one, I sincerely offer:
1. Look VERY COOL! in every social situation with a few potentially critical operating trade-offs
2. Be a very accessible "truck gun" with a few potentially critical operating trade-offs
3. Be stashed/carried in a 15"-shorter circumstance: under a typical double-doored kitchen wall cabinet, any business counter-top/desk, etc, with a few potentially critical trade-offs operating trade-offs.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Sun Apr 09, 2017 9:25 pm 
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Location: Orlando, FL
I have a Mossy500 with the 18" barrel and a Raptor stock. I took the ATI collapsible off and still have the strap on the pump. This was/is pre Shockwave. It looks cool. The birds head (BH) Raptor grip is much easier to shoot than the original pistol grip Mossberg dressed their guns with. Having both an 870 and 500 in the house with BH grips I have filled my quota of fun. I am selling off both of the BH grips and the ATI stock. Probably put another factory stock on the gun and be much happier.

As for the Shockwave... not for me.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Sun Apr 16, 2017 9:19 am 
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I have fired a similar PGO Remington 870 at the police range and came away with the impression that it was exceedingly loud and impractical. On the positive side, it will fit into a small space in your vehicle, but then again, so will a full sized service pistol and half a dozen spare magazines. Or better yet the excellent little Sub-2000 carbine that folds in half making it only 16 inches long (that is 10 inches shorter than the Shockwave). I think that I would rather have a shoulder able carbine that holds 25 or 30 rounds than a stockless shotgun with a 5 round magazine. Especially when they have to be poked in one at a time.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Tue Apr 18, 2017 7:57 pm 
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Ezra Smack wrote:
...On the positive side, it will fit into a small space in your vehicle, but then again, so will a full sized service pistol and half a dozen spare magazines. Or better yet the excellent little Sub-2000 carbine that folds in half making it only 16 inches long (that is 10 inches shorter than the Shockwave). I think that I would rather have a shoulder able carbine that holds 25 or 30 rounds than a stockless shotgun with a 5 round magazine. Especially when they have to be poked in one at a time.


I agree with much of what you said, however from my perspective within its niche, nothing beats a "shotgun" with proper ammo. That niche is not long range, nor is is it hostage-type surgical precision...it is up close, in your face, fast & dirty, limited range, big-time hurt. I have no prob with PGO within 10 yards (or more); that is its niche. It is a battle axe, not a screwdriver. I'm good with 5+ or so 12ga (4B thru 00B) buckshot load/s in a Shockwave style "firearm" (it is of course technically not a "shotgun" under federal law, or under the applicable law of my home state).

A very big plus is that in my jurisdiction a Shockwave can be carried fully charged (hot) on a License to Carry Firearms. It can't be concealed on the person of course w/o NFA consequences, however it can be transported & kept fully charged in a vehicle. And it would not be my only option. Different tools for different jobs...

Rhetorical question (not directed at Ezra)...let's ask Reginald D if he would have wanted a Shockwave at Florence & Normandy...and a more maneuverable vehicle...I think we know the answer.


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 Post subject: Re: Mossberg Shockwave
PostPosted: Tue Apr 18, 2017 8:56 pm 
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A 12 ga does deliver a devastating blow, even from a short 14" barrel but if I wanted something short and compact and knew that I might have to take a shot beyond across the bed room distance, I would choose my Sub 2000 in .40 caliber which can be properly shouldered. From the long 16 inch barrel the performance is equivalent to a 10MM and a quick double tap from a 10MM is nothing to sneeze at. Also, since is semiautomatic it can be repeatedly fired one handed in an emergency. The best part is that it holds 25 rounds and the magazine can be changed just about as quickly as you can poke one single shell into the Mossberg. Don't get me wrong, I prefer a shotgun for HD because of the power but I want a shotgun with a stock and more than a five rounds in the magazine.

This thing is a gimmick that is coveted only because it was formerly forbidden fruit. That being said it looks like a fun range toy and at such a reasonable price I may actually buy one to play with. If, with enough practice I can actually be competitive with it in a tactical shotgun match I most assuredly will change my mind but I don't foresee that happening. Try running a rack of steel plates with it under the timer and then get back to us.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Wed Apr 19, 2017 8:12 pm 
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Ezra Smack wrote:
...This thing is a gimmick that is coveted only because it was formerly forbidden fruit. ...Try running a rack of steel plates with it under the timer and then get back to us.


Gimmick? Not from my perspective. Special purpose? Yes. Does it comply as a non-NFA "firearm"? In my state, yup. Mossberg didn't make the rules, & they of course weren't the first to comply with them.

Plate rack? Umm, no. That's not what this is tool about. Just as a hammer & chisel would not be my first choice to remove a bolt, although they can do it in the right hands.

IMO the Shockwave & related "firearms" special purpose is close-up urban density, especially exiting a vehicle, with a plan to transition to something else as needed. This clearly isn't the tool for gaming a plate rack, & IMO it certainly isn't a viable general purpose tool. I think it can also be useful for some HD applications, although it would not be my first choice, as I prefer a short-stocked PG (not PGO) SG for that purpose.

I also have an enhanced S2k (G17 mag version, to complement a ...wait for it...G17) & that S2k is just so easy to accurately and quickly shoot & scoot, however I have no expectation of alighting from a vehicle with said S2k to deal with a situation, unfold it, insert a mag, & charge it to make ready...if you can do that, my hat is off to you. It just isn't a mobile primary for me. The Shockwave could be so for that very narrow application, though. The jury is still out...


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 Post subject: Re: Mossberg Shockwave
PostPosted: Thu Apr 20, 2017 11:29 pm 
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Legal or not this thing is still a poor choice for engaging multiple targets at even at indoor distances. Any good large caliber handgun will out preform it when the objective is to hit them quickly and reliably. Most people just can't point shoot a shotgun, at least on the up and down axis. While it does dispose of a tremendous amount of power, it has limited capacity, takes both hands to operate and a requires a manual action between shots similar to cocking a single action revolver. There are better tools available for the job.

The Shockwave will sell simply because of the mystique that surrounds sawed off shotguns that here to fore were forbidden to commoners. It will also be fun to play with and again, I might even buy one. If I can run a close quarters drill like the "devils hole" or "El President" as fast as I can land down zero double taps with a .45 then I will have a massive change of heart, but that remains to be proven.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Fri Apr 21, 2017 1:41 pm 
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A little off topic, but related, and since the world continues to prove to suck more...
My new truck gun is a M92 PAP (20.25" long) fed by a first shorter 20-rnd tanker mag
... with a folding Shockwave brace until my SBR stamp is processed.
Stupid loud with the comp I'm running but easy 100+ yards MOBG behind a cinder block wall. :shock: 124gr 30-cal goodness.
Be prepared: more than a Boy Scout motto.
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Fair warning posted.

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 Post subject: Re: Mossberg Shockwave
PostPosted: Fri Apr 21, 2017 6:46 pm 
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Most people do not realize that handguns were originally included as concealable "gangster weapons" in the bill that became the National Firearms Act of 1934. Provisions were included to keep criminals from cutting down common rifles and pistols into concealable "hand guns". Due to pressure from the NRA and the general public pistols and revolvers were taken out in a last minute compromise but regulations preventing you from shortening rifles and shotguns to concealable sizes were left in. These regulations make absolutely no sense in a country where you can still legally buy a handgun yet many people have gone to prison for shortening long guns.



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