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
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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"
Product Information | |
Metal Finish | White |
Barrel Length | 25.5 |
Capacity | 50+1 |
Chamber | 2.75" |
Stock Material | Aluminum Chassis |
Gauge | 410 |
Stock Color | Ghillie Green |
Product Information | |
Metal Finish | Marine Cerakote metal |
Barrel Length | 24.8 |
Capacity | 33+1 |
Chamber | |
Stock Material | Aluminum Chassis |
Gauge | 350 Legend |
Stock Color | MAGPUL BACKPACKER |
Product Information | |
Metal Finish | Blue/Black |
Barrel Length | 18.5 |
Capacity | 4+1 |
Chamber | 3" |
Stock Material | Synthetic |
Gauge | 12 Gauge |
Stock Color | Synthetic |
Retail Price
In-Store Purchase Only | |
Lexington, KY | In store |
Greenville, KY | Not in store |
Sevierville, TN | Not in store |
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"
Current Item

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N/A |
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Questions & Answers
-
- Answered
- Asked 03/03/2025 15:42 by Mark M
A: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
- Asked 09/23/2019 14:48 by Jamie D
A: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,See 2 more answers |
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 -
- Answered
- Asked 01/10/2019 08:37 by Michael B
A: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
- Asked 08/22/2018 02:51 by greg p
A: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 WaySee 6 more answers |
Summerville, SC 29483
Phone - 1-800-290-0065
Fax - 843-851-2897
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