My Account (Sign in)
Your basket is empty.
0
Basket
contact us by phone Help and contact
Free standard delivery over £199
100-day return policy
My Account (Sign in)
Wish list
Your basket is empty. (0)
Basket
Newsletter Newsletter
Sale

Over 300,000 customers - we say thank you!

4.93/5 "Very good" (1400+ reviews)

40,000+ products for hunting and shooting sports

Shotgun Parts Stock & Forend Parts Buttstocks MAGPUL SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 FDE Support

Enhance your Mossberg 500/590 with the ambidextrous Magpul SGA Buttstock, featuring adjustable length of pull, recoil reduction, and ergonomic grip.

MAGPUL SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 FDE

873750008530 100011606

Filters:

Variations
Filters:
Variations:

Variations:

Enhance your Mossberg 500/590 with the ambidextrous Magpul SGA Buttstock, featuring adjustable length of pull, recoil reduction, and ergonomic grip.
SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 FDE
134.9 GBP 0 £134.90 *
Backorderable
Color: FDE Features: Replacement Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100011606
Backorderable
134.9 GBP 0 £134.90 *
Offer
Upgrade your Mossberg 500/590 with the ambidextrous Magpul SGA Buttstock, featuring adjustable length of pull, recoil reduction, and enhanced grip ergonomics.
SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 ORANGE
129.9 GBP 6 £129.90 * £134.90 You save £5.00
In stock
Color: Orange Features: Replacement Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100011607
In stock
129.9 GBP 6 £129.90 * £134.90
Enhance your Mossberg 500/590 with the Magpul SGA Buttstock; features adjustable LOP, recoil-reducing pad, and ambidextrous design for superior comfort.
SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 BLACK
134.9 GBP 0 £134.90 *
Backorderable
Color: Black Features: Replacement Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100011605
Backorderable
134.9 GBP 0 £134.90 *
The Magpul SGA Buttstock for Mossberg 500/590 offers ambidextrous adjustability, recoil reduction, and ergonomic grip, enhancing your shotgun experience.
SGA BUTTSTOCK AMBI FOR 12GA MOSSBERG 500/590 STEALTH GRAY
134.9 GBP 0 £134.90 *
Backorderable
Color: Gray Features: Replacement, Law Enforcement/Police, Fixed Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100015243
Backorderable
134.9 GBP 0 £134.90 *
129.9 134.9 4 GBP
134.9 GBP £134.90

Prices inclusive of duty & VAT.

Product no.: 100011606

Mfr. No.: MAG490-FDE

873750008530 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.
Backorderable
Be the first to rate this product
1
2
3
4
5
6
7
8
9
10+
£134.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy
No charges until we ship
No charge:
Your credit card will not be charged when you place your order.

No commitments:
You are under no obligation until the goods are shipped. You can cancel your order at any time before shipping - free of charge.

Not until shipping:
Your credit card will only be charged once we ship your order. Not before.
  • Ambidextrous design for all users
  • Adjustable length of pull
  • Recoil-reducing butt-pad
Wish List Ask question
129.9 134.9 4 GBP
Description Specification Customers reviews Accessories

MAGPUL SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 FDE

134.9 GBP £134.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+
£134.90

Prices inclusive of duty & VAT.

1
2
3
4
5
6
7
8
9
10+

Backorderable, delivery time approx. 4-12 weeks from the USA warehouse.

100-Day Return Policy

Description:

Enhance your shooting experience with the SGA® Ambidextrous Buttstock

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:

  • Spacer system for length of pull adjustment
  • Improved grip ergonomics
  • A recoil-reducing butt-pad
  • 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 length of pull in 1/2" increments from 12.5" to 14.5"
  • Recoil-reducing butt-pad
  • Integral right/left 1.25" sling loops

Specifications

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


Attributes

  • Colour: 
    FDE
  • Features: 
    Replacement
  • Gauge: 
    12 Gauge
  • Material: 
    Polymer
  • Model: 
    500
    , 
    590
  • Weapon type: 
    Mossberg
  • Delivery weight: 0.93kg
  • Shipping height: 57mm
  • Shipping width: 171mm
  • Shipping length: 324mm
  • UPC: 873750008530

Item details

Made in USA

Customers reviews

Customer ratings (0)

0 / 5

Variations:

Enhance your Mossberg 500/590 with the ambidextrous Magpul SGA Buttstock, featuring adjustable length of pull, recoil reduction, and ergonomic grip.
SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 FDE
134.9 GBP 0 £134.90 *
Backorderable
Color: FDE Features: Replacement Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100011606
Backorderable
134.9 GBP 0 £134.90 *
Offer
Upgrade your Mossberg 500/590 with the ambidextrous Magpul SGA Buttstock, featuring adjustable length of pull, recoil reduction, and enhanced grip ergonomics.
SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 ORANGE
129.9 GBP 6 £129.90 * £134.90 You save £5.00
In stock
Color: Orange Features: Replacement Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100011607
In stock
129.9 GBP 6 £129.90 * £134.90
Enhance your Mossberg 500/590 with the Magpul SGA Buttstock; features adjustable LOP, recoil-reducing pad, and ambidextrous design for superior comfort.
SGA BUTTSTOCK AMBIDEXTROUS FOR 12GA MOSSBERG 500/590 BLACK
134.9 GBP 0 £134.90 *
Backorderable
Color: Black Features: Replacement Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100011605
Backorderable
134.9 GBP 0 £134.90 *
The Magpul SGA Buttstock for Mossberg 500/590 offers ambidextrous adjustability, recoil reduction, and ergonomic grip, enhancing your shotgun experience.
SGA BUTTSTOCK AMBI FOR 12GA MOSSBERG 500/590 STEALTH GRAY
134.9 GBP 0 £134.90 *
Backorderable
Color: Gray Features: Replacement, Law Enforcement/Police, Fixed Gauge: 12 Gauge Make: Mossberg Material: Polymer Model: 500, 590 Product no.: 100015243
Backorderable
134.9 GBP 0 £134.90 *

Customers also bought

Oops! Something went wrong.

We encountered an error while loading this content. Please refresh the page to continue. If the issue persists, contact our customer support.

Site Navigation
Product Categories
Ordering
Customer Service

Welcome!

to Brownells UK, your destination for anything gun related. With our roots in a genuine passion for firearms, we bring you an unmatched selection of Gun Parts, Firearm Accessories, Gunsmithing Tools, Scopes & Red Dot Sights and Expert Knowledge.

Whether you're looking to maintain, repair, or upgrade, we've got what you need!

For Shooters, By Shooters
We share your enthusiasm and know exactly what you're looking for because we're part of the community.

Massive Selection
From the essentials to the unique, find everything under one roof.

Our blend of tradition and innovation
Shop with the convenience of modern technology, backed by a legacy of experience.

Browse our collection and discover why we're the trusted name in shooting sports & hunting.

Brownells Norge - Komplett utvalg av ladeutstyr, våpendeler, kuler, hylser, kikkerter, optikk og luftvåpen Brownells Österreich - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Switzerland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells Deutschland - Einer der größten Lieferanten für Waffenteile, Büchsenmacherzubehör & Schießsportzubehör Brownells France - Le plus grand fournisseur d'Accessoires pour le tir, Pièces détachées & Outils d'Armurier Brownells Iberica - El mayor proveedor de accesorios para el Tiro, Piezas y herramientas del armero. Brownells Sverige - Världens största leverantör av Vapendelar, Vapensmide Verktyg & Skyttetillbehör Brownells Suomi Brownells Italia - Il negozio del più grande rivenditore di componenti e accessori per armi da tiro, difesa e caccia Brownells Polska - Największy na świecie dostawca części broni, narzędzi rusznikarskich & akcesoriów strzeleckich Brownells Česko - Největší světový dodavatel součástí zbraní, střeleckého příslušenství a zbrojního nářadí
*
Prices inclusive of duty & VAT.

© 2026 Brownells UK
Part of the Brownells Europe Group

Logo Brownells
Classical viewClassical view Mobile viewMobile view
Back to top