Skip to content

shopping cart

budsgunshop.com uses cookies to ensure you get the best experience. Details can be found in our Privacy Notice.

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

   15 Reviews
| 5 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)
View Product Videos

**Mouse over image above to zoom any area, or click on image to zoom the entire image.

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"


$187.49
Save up to 20%!
Clearance!
$154.49
Retail Price
$187.49
Save up to 20%!
Clearance!
$154.49
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 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"

Top 14 Similar Items
Only American Tactical | Sort by: Most Popular | Lowest Price | Highest Price

Current Item

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$149.99

Blue/Black
N/A
12 Gauge
18.5
4+1
N/A
N/A
N/A
American Tactical

Beretta 1301 Tactical Mod.2 12ga 18.5" Cylinder Bore Black 7+1

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$1,549.00

Blue/Black
Semi-Auto
N/A
18.5
7+1
N/A
2 Position
N/A
Beretta

Escort BullTac 12ga 18" Bullpup Shotgun 5+1 Capacity

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$251.49

Blue/Black
Pump
N/A
18
5+1
N/A
Cross Bolt
27.75"
Escort

Tokarev TX3 Hammer 12ga 18.5" Pump Action Tactical Shotgun 4+1

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$139.99

Blue/Black
Pump
N/A
18.5
4+1
N/A
2 Position
27.75"
Tokarev

Maverick Model 88 Field/Security Combo 12 GA 28" & 18.5" Barrel

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$287.49

Blue/Black
Pump
N/A
28
6
Not Listed
Cross Bolt
47.75"
Mossberg

Kel-Tec KSG 12 Gauge Bullpup Shotgun 14 Rd Capacity

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$619.99

Blue/Black
Pump
N/A
18.5
14+1
Not Listed
Cross Bolt
26.1"
KelTec

Maverick 88 Security 12 GA 20" Cylinder Bore 7+1

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$254.49

Blue/Black
Pump
N/A
20
7+1
Not Listed
Cross Bolt
41"
Maverick Arms

SDS Imports Tokarev TAR Black 12 Gauge Shotgun

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$224.99

Blue/Black
Semi-Auto
N/A
18.5
5
Standard
Manual Safety
41"
Tokarev

SDS Imports Tokarev TBP 12 Gauge Bullpup Shotgun

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$218.49

Blue/Black
Semi-Auto
N/A
18.5
5+1
Standard
2 Position
41"
Tokarev

USED SRM ARMS MODEL 1216 12GA

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$1,399.99

Blue/Black
Semi-Auto
12 Gauge
18.5
16+1
Standard
2 Position
34"
SRM Arms
No reviews on this product yet

USED BERETTA A300 OUTLANDER, 12GA

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$499.99

Blue/Black
Semi-Auto
12 Gauge
28
2 + 1
Standard
Cross Bolt
48 "
Beretta
No reviews on this product yet

Four Peaks Imports AKSA Arms S4 12 GA 3" 5+1 18.50" Chrome Plated 7075-T6 Aluminum Receiver Black Synthetic Stock

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$545.99

Blue/Black
Semi-Auto
12 Gauge
28
5+1
Standard
Cross Bolt
48 "
Four Peaks
No reviews on this product yet

Ermox XPro-B S 12ga. Pump Shotgun Desert Sand Stock

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$134.99

Blue/Black
Pump
12 Gauge
28
5+1
Standard
Cross Bolt
48 "
Other

USED BENELLI M4 TACTICAL 12GA

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$1,699.99

Blue/Black
Semi-Auto
12 Gauge
28
5+1
Standard
Cross Bolt
40 "
Benelli
No reviews on this product yet

USED REMINGTON 11-87 12GA

ATI S-Beam MB3-R Pump Action Shotgun 12 GA 18.5 Barrel 4+1

$849.99

Blue/Black
Semi-Auto
12 Gauge
21
4+1
Standard
Cross Bolt
42"
Remington
No reviews on this product yet

15 Reviews. 4.7 out of 5 Stars!
5 Stars
87%
4 Stars
7%
3 Stars
0%
2 Stars
6%
1 Star
0%
Write Review
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

Russell C on 07/13/2022
Rating:   5 of 5 Stars!

wonderful home defense for the price bought it for my son he loves it

Mathew V on 03/17/2020
Rating:   5 of 5 Stars!

Great shotgun for a great price. Wish the loader was longer. I would say use 2 1/2 inch shells to get 4 in the loader.

Travis B on 02/11/2020
Rating:   5 of 5 Stars!

Strong shotgun! Fast delivery.

Johnny F on 01/08/2020
Rating:   5 of 5 Stars!

For the price I was hesitant on purchasing but gave it a chance.
After cleaning the factory lube everywhere I too it to the range.
Good shotgun with no issues. Kicks like a angry mule, slugs are brutal.
Birdshot and buck were flawless.
I would depend on it for home defense and truck gun. Thanks again
Buds!

Questions & Answers

    • 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 |

Receive Money Saving Offers

Enter your email address to receive our best deals and other store updates.

Connect With Us

Buy With Confidence

4,719,549 Customers Since 2003
1,458 Currently Online
BBB ACCREDITED BUSINESS, A+ Rating

Copyright © 2003 - 2025 budsgunshop.com. All Rights Reserved. (NW2)

Loading...