Mossberg 590A1

[brent_mpk]

This is my parkerized Mossberg 590A1 with an 8 plus 1 round capacity, factory 20" heavy walled barrel, Mossberg heat shield, ghost ring sights, Surefire tactical weapon lite, and 4 round synthetic speed feed stock. I use the speed feed stock for the range, the ATI fold over stock is only for home defense. It took a little bit of modification to get the Surefire and heat shield to fit, but well worth the time.
http://farm3.static.flickr.com/2665/4088522339_a2ae6446da_b.jpg

http://farm3.static.flickr.com/2582/4088522083_e7fd84e274_b.jpg

[rkt88edmo]

how did you manage the surefire? is that a different bezel?

[brent_mpk]

The forend is the Surefire model# 623LFG. It came as is, and I did not have to replace any parts. As stated by Surefire, some modification is needed to make the forend fit correctly. However, I decided to modify the forend instead of their suggestion of modifying the bayonet lug. I used a dremel with a cutting wheel to grind/shave down the slide tube stop on the inside of forend. I took off a little more that a 1/4" to make the forend and the slide tube flush in the rear. This created enough of a gap between the flashlight and bayonet lug for full weapon/light function. I reversed the stock slide nut to secure the forend to the slide tube instead of trying to find a washer to fit the gap created by shaving the forend. I attached a few photos...
http://farm3.static.flickr.com/2520/4090992044_1dd90166a3.jpg
http://farm3.static.flickr.com/2690/4090226223_3fd598d876.jpg
http://farm3.static.flickr.com/2470/4090994674_c87d1b27f6.jpg

[AlliedArmory]

nice looking shotty there mang., but that folding stock hurts like a mofo

[Fillabuster]

Sick! Hope to see you at the range one of these days :)

[rkt88edmo]

Awesome, thanks for sharing, I am pretty sure I haven't seen anyone do that mod before, pretty straightforward and you didn't have to remove much material it looks like. Time to start saving up for the fore end.

The forend is the Surefire model# 623LFG. It came as is, and I did not have to replace any parts. As stated by Surefire, some modification is needed to make the forend fit correctly. However, I decided to modify the forend instead of their suggestion of modifying the bayonet lug. I used a dremel with a cutting wheel to grind/shave down the slide tube stop on the inside of forend. I took off a little more that a 1/4" to make the forend and the slide tube flush in the rear. This created enough of a gap between the flashlight and bayonet lug for full weapon/light function. I reversed the stock slide nut to secure the forend to the slide tube instead of trying to find a washer to fit the gap created by shaving the forend. I attached a few photos...
http://farm3.static.flickr.com/2520/4090992044_1dd90166a3.jpg
http://farm3.static.flickr.com/2690/4090226223_3fd598d876.jpg
http://farm3.static.flickr.com/2470/4090994674_c87d1b27f6.jpg

[brent_mpk]

No problem, always happy to help.

[CAAT1]

That is one cool 590A1 there. BADASS!:cool:

[brent_mpk]

thanks :D

[NERVOUS]

Which heatshield did you use?

[brent_mpk]

I used the factory Mossberg heat shield off of their website. However, it's hit or miss... My friend has a 590A1 like mine(a little older), and bought the same heat shield off the Mossberg site and it did not fit.

[Black Majik]

The forend is the Surefire model# 623LFG. It came as is, and I did not have to replace any parts. As stated by Surefire, some modification is needed to make the forend fit correctly. However, I decided to modify the forend instead of their suggestion of modifying the bayonet lug. I used a dremel with a cutting wheel to grind/shave down the slide tube stop on the inside of forend. I took off a little more that a 1/4" to make the forend and the slide tube flush in the rear. This created enough of a gap between the flashlight and bayonet lug for full weapon/light function. I reversed the stock slide nut to secure the forend to the slide tube instead of trying to find a washer to fit the gap created by shaving the forend. I attached a few photos...
http://farm3.static.flickr.com/2520/4090992044_1dd90166a3.jpg
http://farm3.static.flickr.com/2690/4090226223_3fd598d876.jpg
http://farm3.static.flickr.com/2470/4090994674_c87d1b27f6.jpg


Genius! Well done, a very nice looking 590A1. :cool2:

[brent_mpk]

Thanks! The only draw back to the heat shield and surefire is that my moss weighs 10 lbs unloaded! hahahaha

[Fillabuster]

That's 10 lbs of zombie smashing goodness!

[5150bronco]

is this the one that is sold at big 5? I was looking there today.

[SDgarrick]

love that parkerizing, really nice 590A1, I'm beginning to really like this over the 870. again, well played.

[brent_mpk]

is this the one that is sold at big 5? I was looking there today.
Not sure if they carry this model at Big 5. I got it from thru Minute Man Firearms.

[drider]

Nice, i heard Monterey park is notorious for their good drivers?:thumbsup:

[brent_mpk]

Nice, i heard Monterey park is notorious for their good drivers?:thumbsup:
LOL... you heard right. Lucky I'm a good defensive driver!!! :94:

[NERVOUS]

I used the factory Mossberg heat shield off of their website. However, it's hit or miss... My friend has a 590A1 like mine(a little older), and bought the same heat shield off the Mossberg site and it did not fit.

Is this the heat shield you used?

Mossbert Heat Shield (http://www.mossberg.com/cgi-bin/commerce.exe?preadd=action&key=95066&reference=/cgi-bin/commerce.exe%3Fsearch%3Daction%26keywords%3Dheat%2 6searchstart%3D0%26template%3DPDGCommTemplates\Mos sPdgNav\SearchResult.html%26category%3D%26sku%3D)

[brent_mpk]

Is this the heat shield you used?

Mossbert Heat Shield (http://www.mossberg.com/cgi-bin/commerce.exe?preadd=action&key=95066&reference=/cgi-bin/commerce.exe%3Fsearch%3Daction%26keywords%3Dheat%2 6searchstart%3D0%26template%3DPDGCommTemplates\Mos sPdgNav\SearchResult.html%26category%3D%26sku%3D)
Yes, that is the one I ordered.

[dohboy]

so the Mossberg factory parkerized heat shield fits the heavy thick barrel of the 590A1???

[AlliedArmory]

so the Mossberg factory parkerized heat shield fits the heavy thick barrel of the 590A1???

His did, but mine didn't. We ordered ours about the same time, mine a few weeks after his. His fit pretty easily, and mine there was no way it would fit.

I contacted these guys a while ago and the 20" 590a1 heatshield should be available any day now

http://www.aimprotactical.com/16873/20285.html



and yes. his shotgun is freakin HEAVY

[TommyRuss]

http://img5.imageshack.us/img5/9774/img0801e.jpg (http://img5.imageshack.us/i/img0801e.jpg/)

Just finished Brent_MPK's Surefire mod on my Mossberg. Only needed to shave/grind off slightly more than 1/4" inside the Surefire.

Mossberg 590A1 (#51663)
Surefire 623LF
Mesa Tactical stock kit (w/ Endine recoil buffer)

[rkt88edmo]

huh, looks like the new LM series with one battery and shorter profile would also adress this now. That being said, i'll be keeping my eye out for a deal on any of the models because of this mod.

[TommyRuss]

yeah, i just noticed that myself on the Surefire website. i guess they were just waiting for me to buy the forend that needed modification!

[Limit67]

How does having that lug and potentially the bayonet effect the light? I'm going to be doing this to my 590a1, and am glad theres a way to do it without taking the lug off. Thanks for showing us how!

[TommyRuss]

How does having that lug and potentially the bayonet effect the light? I'm going to be doing this to my 590a1, and am glad theres a way to do it without taking the lug off. Thanks for showing us how!

there is about a 1/4" overlap, where the front bezel of the flashlight hits the lug (and doesn't allow you to fully rack the weapon).

[dark_ninja]

Very nice SG guys! I'm jealous!

[Limit67]

Anybody want to make a tutorial on how to do this? I'm a noob and still am lost as to where to dremel and where not to...

[Ishoot]

Anybody want to make a tutorial on how to do this? I'm a noob and still am lost as to where to dremel and where not to...

I'd say try and dry fitting it to see where the contact is occuring. Should be able to see that 1/4 or so overlap where the foreend hits the lug. Nice shotguns in this thread. Planning on picking up the ATI folding stock for my 500a for home defense also. Now Im going to look for a good deal on that Surefire forend too. :)

[brent_mpk]

http://img5.imageshack.us/img5/9774/img0801e.jpg (http://img5.imageshack.us/i/img0801e.jpg/)

Just finished Brent_MPK's Surefire mod on my Mossberg. Only needed to shave/grind off slightly more than 1/4" inside the Surefire.

Mossberg 590A1 (#51663)
Surefire 623LF
Mesa Tactical stock kit (w/ Endine recoil buffer)

Nice Job Tommy!! Looks good!!

[brent_mpk]

huh, looks like the new LM series with one battery and shorter profile would also adress this now. That being said, i'll be keeping my eye out for a deal on any of the models because of this mod.

Wow, I like the look of the new LM models. Damn, might have to waste some money on a new bezel!!! :p

[brent_mpk]

Anybody want to make a tutorial on how to do this? I'm a noob and still am lost as to where to dremel and where not to...

Limit, I would just buy the new LM model as posted by rkt88edmo if you havent already bought your Surefire.