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ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5" Barrel 4+1 - 4+1 Rounds | 18.5" Barrel | 3" Chamber | Synthetic Stock | Blue/Black

   19 Reviews
| 6 Questions & Answers
Model: GMB3R
 
Condition: Factory New
 
Bud's Item Number: 30247
 
UPC: 813393019784
 

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1
ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1 ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1 (Image 2) ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1 (Image 3)
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American Tactical's MB3 series of shotguns are perfect for home defense at an affordable price. It has a black synthetic stock, 18.5" barrel, and a 4+1 capacity. This MB3-R model features a receiver-mounted Picatinny rail for optics and a blade front sight.

Specifications and Features:
American Tactical Imports S-Beam MB3-R ATIGMB3R
Pump Action Shotgun
12 Gauge
18.5" Barrel
4 Round Magazine
3" Chamber
Picatinny Top Rail
Picatinny Rail Forend
Black Synthetic Stock
Rubber Recoil Pad
Crossbolt safety
Overall Length 39.25"


209.97
-16%
$181.27
Retail Price
209.97
-16%
$181.27
Retail Price
Financing Available
Click here to learn more
Financing Available
Click here to learn more
Retail Store Availability
In-Store Purchase Only
Lexington, KY In store
Greenville, KY Not in store
Sevierville, TN Not in store

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5" Barrel 4+1
Model
GMB3R
Condition
Factory New
Bud's Item #
30247
UPC
813393019784
Manufacturer
American Tactical

American Tactical's MB3 series of shotguns are perfect for home defense at an affordable price. It has a black synthetic stock, 18.5" barrel, and a 4+1 capacity. This MB3-R model features a receiver-mounted Picatinny rail for optics and a blade front sight.

Specifications and Features:
American Tactical Imports S-Beam MB3-R ATIGMB3R
Pump Action Shotgun
12 Gauge
18.5" Barrel
4 Round Magazine
3" Chamber
Picatinny Top Rail
Picatinny Rail Forend
Black Synthetic Stock
Rubber Recoil Pad
Crossbolt safety
Overall Length 39.25"

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19 Reviews. 4.8 out of 5 Stars!
5 Stars
90%
4 Stars
6%
3 Stars
0%
2 Stars
5%
1 Star
0%
Write Review
Mark M on 03/03/2025
Rating:   5 of 5 Stars!

This shotgun rocks for the price you can’t beat it, I was really surprised at the smooth action, shoots 3 inch slugs very well handles high brass rounds with no jams. For the money it’s a 10 out of 10.👍🏻👍🏻👍🏻 well done ATI

Benjamin R on 02/28/2025
Rating:   5 of 5 Stars!

haven’t shot it yet but it’s nice sturdy not bad for the price I like how it has a rail for a red dot

Erica B on 02/28/2025
Rating:   5 of 5 Stars!

This seems to be a sturdy little shotgun for the price. I've seen a couple fail reviews where the shells get stuck when sitting multiple times but haven't had that experience.

Cole M on 02/24/2025
Rating:   5 of 5 Stars!

This is the first firearm I've ever owned, and so far, it's great! I've shot about 50 rounds through it at this point, and the only problem I can think of is that the action will sometimes jam up if I load the magazine full. Very well could be user error as this is the first shotgun I've ever used, but if the problem persists I will update my review. Overall, I couldn't be happier considering the price I paid.

Elmer G on 12/30/2024
Rating:   5 of 5 Stars!

easy assemble, great price.

Gary B on 12/16/2024
Rating:   5 of 5 Stars!

that gun fires real nice and smooth little kick but not bad.

Michael C on 11/11/2024
Rating:   5 of 5 Stars!

The American Tactical MB3-R is, for me, the first choice of home defense weapon. It easily accepts a CHOAT +2 extension making it a capable six-shooter. The stock and hardware are utility grade, as they should be. The included picatinny rail has been mounted with a simple red/green reflex optic. Smooth action. Very pleased.

Carlos B on 07/13/2024
Rating:   5 of 5 Stars!

Absolutely love it love shooting it no complaints whatsoever I might have to buy another one

Edgardo C on 06/24/2024
Rating:   5 of 5 Stars!

Muy buena escopeta y por el precio que ofrece muy recomendable

Caleb D on 03/29/2023
Rating:   5 of 5 Stars!

functioned as it should

Questions & Answers

    • Answered
    Hi Mark and welcome. I would contact American Tactical Customer Service at Phone - 1-800-290-0065 Option 3 for the correct fit magazine tube extension: https://www.midwestgunworks.com/ati-gun-stocks/magazine-tube-extensions.html?srsltid=AfmBOorH89NA9LwdxDQmfgEA1j81zUB8YNIVzV12IlDAR4RTFJ1BN0p2 --------------- Or by online inquiry here: https://americantactical.us/contact
    • Answered
    Jamie, You can put as much money into customizing this $150 shotgun that you want. Here are some kits for under $50 from ATI that would work.-------https://www.budsgunshop.com/product_info.php/products_id/17655/ati+hrn4100+h%26r%2fnef+adjustable+shotforce+stock+and+forend,






    https://www.budsgunshop.com/product_info.php/products_id/55030/remington+black+shurshot+stock%2fforend+for+model+870,


    https://www.budsgunshop.com/product_info.php/products_id/3107/promag+aa870+remington+870+shotgun+polymer+black -----------Most 870 accesories will fit this ATI MB3-R
    See 2 more answers |
    • Answered
    Michael, Absolutely. You can shoot 2 3/4" or 3" Slugs with this firearm. I own 3 different Remington 870 models, love them. Picked this firearm up for a kick around and spare for deer camp. Can't beat the price and shoots everything I've put through it.
    See 2 more answers |
    • Answered
    even the ATI web site does not list that info I think it is a fixed cylinder choke but I would verify this at ATI 231 Deming Way
    Summerville, SC 29483
    Phone - 1-800-290-0065
    Fax - 843-851-2897
    See 6 more answers |

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