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9/30/2025 4:52:38 PM EDT
Factory 590A1 SBS with 14 inch barrel. Do you need the Schockwave fore end?

I don't think the regular one works as I believe the mag tube is too short.

Thoughts?

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"I will leave when I have your wounded." MAJ Kelly
1/14/2012 11:34:53 AM EDT
[#1]
Topic Moved
9/30/2025 4:55:23 PM EDT
[#2]
I saw this, but I am not sure if this fits.

https://www.gggaz.com/magpul-forearm-for-mossberg-shockwave.html

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"I will leave when I have your wounded." MAJ Kelly
1/6/2026 7:00:56 PM EDT
[#3]
Quote History




That seems like it should fit . I have that shockwave and am waiting for my stamp to come back
RIP Jeff Reed. Tennessee Squire, Ga. Carry member, NRA,Non-puking 72 ounce drinker 2 of 6 Norcal call sign, Forgotten.
1/10/2026 5:29:49 PM EDT
[#4]
Quote History



This one works great it is what I have on mine.
LIVE FREE OR DIE-------NEVER FORGET THE PAST
1/16/2026 1:33:48 PM EDT
[#5]
Quote History
Originally Posted By MAZDOG:
This one works great it is what I have on mine.
View Quote

My LGS had some modified to fit. I am good to go now!

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"I will leave when I have your wounded." MAJ Kelly
1/24/2026 11:17:51 AM EDT
[#6]
Originally Posted By TimeOnTarget:

My LGS had some modified to fit. I am good to go now!

https://www.ar15.com/media/mediaFiles/432675/IMG_8174_jpeg-3695668.JPG
View Quote



looks good. The magpul forend looks so much better than the black corn cob. I do like the look of the wood corn cob but still prefer the magpul


I also forgot to mention for anyone else interested the one thing i did not like about the GG&G was they lasered their name on side of it (says transformed by GG&G). It was not listed on website then that it would be there and not sure i would have purchased if i knew that. Not that it is bad but i just don't like all the logo's / names everywhere, etc.
LIVE FREE OR DIE-------NEVER FORGET THE PAST
1/24/2026 11:31:40 AM EDT
[#7]
Dremel go brrrrr.

I just bought a magpul one and wallered it out with a dremel and it fit fine.  The "modification" process isn't rocket surgery.  Its just making clearance on the inside of the handguard.
1/24/2026 11:52:52 AM EDT
[#8]
This is relevant to my interests. I'm looking at a 590S shockwave to SBR. Black Sheep's site shows them in stock.
I know I'll never go home.
So set fire to your ships, and past regrets, and be free.
1/25/2026 9:44:01 AM EDT
[#9]
The best lighting solution for the forend is:

Attached File


It's out of the way, minimalist, and works like a charm. Mine will even charge up my XS big dot if I need it too glowy. Shop around for them, and they can sometimes be found for around 200 dollars.

I think it works better than the big ass forends that take up a lot of real estate, And who needs 1000 lumens for 25 yards? Plus, it's not too bright for indoor use. A more powerful light will reflect off the walls and kill your night vision. And you can use the entire forend, as it should be.
You can't change yesterday, and tomorrow isn't guaranteed. Get your head together.
1/25/2026 10:28:04 AM EDT
[#10]
I also modded a normal one to fit, i think i ised a hole saw and other various red neck gunsmith tools. Work great.
"I guess your not here about the Alcohol or Tobacco"..Nicolas Cage in "Lord of War"
1/25/2026 9:16:16 PM EDT
[#11]
I just ordered a 14" 590s shockwave through the LGS. In 1.5 - 2 weeks I'm one step closer to my SBS. I'll document it in the SBS thread
I know I'll never go home.
So set fire to your ships, and past regrets, and be free.
1/27/2026 12:18:12 PM EDT
[#12]
Quote History
Originally Posted By TNC:
This is relevant to my interests. I'm looking at a 590S shockwave to SBR. Black Sheep's site shows them in stock.
View Quote

If you don't want to DIY, East County Guns is where I got my SBS and fore end.
"I will leave when I have your wounded." MAJ Kelly
7/17/2026 6:21:16 PM EDT
[Last Edit: junebug68][Edited] [#13]
I am about to do this exact setup because I had a Mini Scout I wasn't using. What I ran into was the backside of the M-Lok screw hitting the little anti-rotation sleeve on the forend. Did you remove some of it or did you just grind down the M-Lok screw to clear it? Thanks in advance.
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UPDATE...got it done. Pretty solid.
It's not gambling when you know you're gonna win.
7/17/2026 6:34:38 PM EDT
[#14]
Streamlight makes a for-end with a light for the Shockwave.  

https://www.primaryarms.com/streamlight-tl-racker-shotgun-forend-weapon-light-for-mossberg-590-shockwave-black

7/20/2026 7:34:33 AM EDT
[#15]
Quote History
Originally Posted By GrumpyinStL:
Streamlight makes a for-end with a light for the Shockwave.  

https://www.primaryarms.com/streamlight-tl-racker-shotgun-forend-weapon-light-for-mossberg-590-shockwave-black
View Quote

This works, but I'm going to sell mine as I have my Magpul solutions which I pefer.

ROCK6
"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants" - Thomas Jefferson
7/21/2026 8:21:39 PM EDT
[Last Edit: Stretchman][Edited] [#16]
Quote History
Originally Posted By junebug68:
I am about to do this exact setup because I had a Mini Scout I wasn't using. What I ran into was the backside of the M-Lok screw hitting the little anti-rotation sleeve on the forend. Did you remove some of it or did you just grind down the M-Lok screw to clear it? Thanks in advance.
https://www.ar15.com/media/mediaFiles/49810/1000004804_jpg-3797967.JPGhttps://www.ar15.com/media/mediaFiles/49810/1000004805_jpg-3797968.JPG
UPDATE...got it done. Pretty solid.
View Quote


Cool. Works a lot better than any of the other options I've tried so far, including being able to get a full purchase on the forend. I think the issue was that you have a tac-14, with a gg&g forend ( not the same), and I did this by barrel swapping an 870 full sized gun.
You can't change yesterday, and tomorrow isn't guaranteed. Get your head together.

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