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ATI Outdoors Halo Side Saddle Gen 2 A.5.10.2551 Color: Black, Included Accessories: Standard, 11% Off Plus Coupon Available w/ Free Shipping

ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
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ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
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ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
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ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
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ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
5 of 8 images
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
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ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
7 of 8 images
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551
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ATI Outdoors Gen2 Halo Shotgun Side Saddle, 9-Shell Customizable, Mossberg 500/590, Black, A.5.10.2551

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Questions & Answers
Do the shell holders have to be put on or can it stay off Manufacturer Answer

Shell holders are individual. 9 are included in the kit.

by ATI Outdoors, Manufacturer, September 9, 2025
Will 20ga shells fit in these? If not is there a 20ga version? Can't find an answer. Manufacturer Answer

This is designed only for 12ga.

by ATI Outdoors, Manufacturer, December 20, 2024
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Side saddle with the most capacity and a rail by John, August 17, 2021
I was looking for a side saddle for my Mossberg 590A1. After hours of research, I saw that Mossberg offers an ATI side saddle on their Scorpion 500 model. I was able to hold a Scorpion 500 at my LGS. I liked how the saddle mounted and fit the receive...
Read More...
2/2 found this helpful
Helpful Positive Review
Ati side saddle by Robert RYAN, August 27, 2020
The ATI side saddle is a solid add on to my Mossberg. It gives me ample space to carry extra shells. up to 9. It also has a rail which is perfect to add optics. Its made of lightweight aluminum but is solid enough to withstand harsh abuse. This is th...
Read More...
1/1 found this helpful
Helpful Negative Review
Not recommended for Winchester SXP Defender by Joe, Verified Owner, July 15, 2020
If you have a Winchester sxp defender, you are well aware of the lack of accessory support out there. Prior to ordering, I called ATI and they said it fit. In fact, the guy I spoke with said that he had it on one. Wow! This item had promise. First o...
Read More...
7/9 found this helpful
Most Recent Reviews
Well designed by Lee, Verified Owner, April 3, 2026
I opened box and was impressed with it's quality. But I was disappointed when I realized it wasn't going to work with my folding stock. So unfortunately had to return it. But I'd buy it again if I had another shotgun without a folding stock.
Most Recent Reviews
REMINGTON OWNERS BEWARE by Drew Williams, Verified Owner, May 11, 2023
It's not clear in the listing but this item requires drilling into your 870 receiver for install. It says on the box that gunsmithing is recommended. I'm not sure why anyone would willingly destroy their Remington to mount this thing, and I'm surpris...
Read More...
0/1 found this helpful
Read All 5 Reviews

Up to 15% OFF Gun Parts

See promotion details.
Eligible models will have a savings offer. Apply coupon and add the item to your cart for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Color:
Black
Included Accessories:
Standard
Gun Model:
Mossberg Maverick 88, Remington Model 870, Winchester SXP Super X Pump
Size:
One Size
Number of Rounds:
9

Code: AD-SMT-SDSDLG2-A-5-10-2551

MPN: A.5.10.2551

UPC: 758152622372

14%
Product Discount
List: $74.99Save 11%
$66.49

Product Info for ATI Outdoors Halo Side Saddle Gen 2

Side Saddle Gen 2 MRWimage

Specifications for ATI Outdoors Halo Side Saddle Gen 2:

Manufacturer: ATI Outdoors
Color: Black
Included Accessories: Standard
Gun Model: Winchester SXP Super X Pump, Mossberg Maverick 88, Remington Model 870
Size: One Size
Number of Rounds: 9
Activity/Occasion: Sports, Duty, Casual, Outdoor, Work, Travel, Hike
Gender: Unisex
Age Group: Adults
Gun Type: Rifle
Quantity: 1
Application: Tactical, Work, Outdoor, Everyday, Casual
Seasonal/Temperature Use: All Seasons
Fit: Regular
Hand: Ambidextrous
Style: Tactical
Fabric/Material: 6061-T6 Aluminum
Condition: New

Features of ATI Outdoors Halo Side Saddle Gen 2

  • CNC Machined 6061 T6 Aluminum
  • Military Type III Anodized
  • Integrated Top Rail
  • Military Type III Anodizing
  • 9 Shell customizable configuration
  • Military grade reinforced synthetic material
  • Shell holders mount in any location on the side saddle
  • Mount as many or as few shell holders as desired
  • Sleek Skeletonized Side Saddle Design

Package Contents:

  • ATI Outdoors Halo Side Saddle Gen 2

What firearm models does the manufacturer say ATI Outdoors Halo Side Saddle Gen 2 is compatible with?

The manufacturer suggests that ATI Outdoors Halo Side Saddle Gen 2 is compatible with Remington Model 870, Mossberg Maverick 88, Winchester SXP Super X Pump

ATI Outdoors Halo Side Saddle Gen 2 Orderable Models

List of Orderable Models

  • ATI Outdoors Halo Side Saddle Gen 2, Black, One Size, A.5.10.2551 , MPN: A.5.10.2551 , UPC: 758152622372 , Code: AD-SMT-SDSDLG2-A-5-10-2551

ATI Outdoors Halo Side Saddle Gen 2 Unavailable & Discontinued Models

List of Unorderable Models

  • USED, ATI Outdoors Halo Side Saddle Gen 2, Black, One Size, A.5.10.2551 , MPN: A.5.10.2551-EDEMO , Code: AD-SMT-SDSDLG2-A-5-10-2551-EDEMO-SC-C
  • USED, ATI Outdoors Halo Side Saddle Gen 2, Black, One Size, A.5.10.2551 , MPN: A.5.10.2551-EDEMO , Code: AD-SMT-SDSDLG2-A-5-10-2551-EDEMO-IN-C
  • USED ATI Outdoor Halo Side Saddle Gen2, 9-Shell Customizable, Mossberg 500/590, Black, One Size, A-5-10-2551-EDEMO5, Used, Condition Fair, Condition Fair, Used , MPN: A.5.10.2551-EDEMO5 , Code: AD-SMT-SDSDLG2-A-5-10-2551-EDEMO-US-D
  • USED ATI Outdoor Halo Side Saddle Gen2, 9-Shell Customizable, Mossberg 500/590, Black, One Size, A-5-10-2551-EDEMO4, Used, Condition Fair, Scratches , MPN: A.5.10.2551-EDEMO4 , Code: AD-SMT-SDSDLG2-A-5-10-2551-EDEMO-SC-D
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Last updated 2026-07-07 UTC.