SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Black
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 FDE
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambidextrous for 12GA Mossberg 500/590 Orange
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
SGA Buttstock Ambi for 12GA Mossberg 500/590 Stealth Gray
None
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MAGPUL - SGA® AMBIDEXTROUS BUTTSTOCK FOR MOSSBERG® 500/590

32 Reviews
Color
Brownells #
100011605, 100011606, 100011607, 100015243
MFR #
MAG490-BLK, MAG490-FDE, MAG490-ORG, MAG490-GRY
UPC
873750008523, 873750008530, 873750008547, 873750012001
$118.70
Coupon Code
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What is the MAGPUL - SGA® AMBIDEXTROUS BUTTSTOCK FOR MOSSBERG® 500/590?

The SGA Stock is an ambidextrous, user-configurable buttstock designed to add much-needed adjustability to the tried-and-true Mossberg 500 / 590 / 590A1 12-gauge series of shotguns. Its features include a spacer system for length of pull adjustment, improved grip ergonomics, a recoil-reducing butt-pad, and optional cheek risers for use with optics/raised sights and other accessories.


The Mossberg SGA brings Magpul design and engineering to another classic American firearm. Available in Black, Flat Dark Earth, Stealth Gray and Orange to adapt to the mission at hand.


Made in the USA.


FEATURES

  • Spacer-adjustable lop in 1/2" increments from 12.5" to 14.5"
  • Recoil-reducing butt-pad
  • Integral right/left 1.25" sling loops



SPECS

  • Platform: Shotgun
  • Compatibility: Mossberg® 500/590/590A1 12-gauge
  • Butt-Pad Dimensions: 1.5 x 5.0 in.
  • LOP Adjustment Range: ~12.3-14.3 in.
  • Weight: 1.5 lbs. (with two Spacers installed)
  • Width of Butt, max: 1.5 in.
Specifications

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SGA® AMBIDEXTROUS BUTTSTOCK FOR MOSSBERG® 500/590 REVIEWS

4.8
32 Reviews
5 Stars
94%
4 Stars
3%
3 Stars
0%
2 Stars
0%
1 Stars
3%
Reviews Summary
Overall, customers are highly satisfied with the Magpul SGA Ambidextrous Buttstock, praising its quality, comfort, and ease of installation. While most reviews highlight positive experiences, a few detail minor installation concerns and product adjustments needed, which do not detract significantly from the overall enthusiasm.
What Reviewers Are Saying
Installation Experience
42%
Many reviewers found the installation of the buttstock to be straightforward and easy. While a few mentioned minor challenges, such as managing components during the process, the general consensus is that it installs securely and solidly, enhancing overall satisfaction.
Product Quality
75%
Customers consistently recognize Magpul's reputation for high-quality products, emphasizing the sturdy construction and appealing design of the buttstock. The materials used and the overall aesthetics received positive remarks, affirming the value of the investment.
Comfort and Ergonomics
58%
Reviewers frequently highlight the comfort of the pistol grip and the adjustable length of pull, which allow for a customized shooting experience. This aspect significantly enhances control during use, contributing to a more enjoyable shooting experience.
5
Great stock
Shipping was fast and secure. Stock came with all of the mounting hardware, but no instructions, which can be found on Magpul's website. Easy to install and works great.
by NORMAN M. on October 19, 2026
Verified Purchase
Was this review helpful? 0
5
Feels solid.
Feels solid when shooting. Awesome product
Would you recommend this? Yes, I would recommend to a friend
by David J. on March 20, 2026
Verified Purchase
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5
Making a Shockwave useful
The zero dollar tax stamp for an SBS prompted my purchase of this product. The high quality of Magpul products and ease of installation helped the decision.
Would you recommend this? Yes, I would recommend to a friend
by David K. on February 28, 2026
Verified Purchase
Was this review helpful? 2
5
Brownells and Magpul….a winning team!
Thank you for the excellent service. This is my fourth Magpul stock, two on Mossbergs and one each on Beretta and Remington. They all make those shotguns so much more user friendly for me. You guys are Aces!
by Paul D. on October 02, 2025
Verified Purchase
Was this review helpful? 0
5
Always reliable
Brownells offered a good price and fast delivery. Magpul offers an improved shooting experience. The sun rises in the east,…
Would you recommend this? Yes, I would recommend to a friend
by Scott D. on August 13, 2025
Verified Purchase
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Customer Questions
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