Magpul SGA Shotgun Stock for Mossberg 500/590/590A1 12 GA - Flat Dark Earth Synthetic
Magpul
The Magpul MAG460-FDE SGA fixed stock for Remington 870 12 GA transforms one of America's most versatile shotguns into a platform that actually fits you. If you've shot an 870 and felt like you were wrestling the gun instead of shouldering it, this Flat Dark Earth synthetic stock addresses the ergonomic shortcomings of the original design. Magpul engineered this stock with adjustability and comfort in mind—features you won't find on the factory buttstock—making it a practical upgrade for hunters, sport shooters, and tactical users who demand better control and fit from their shotgun.
The SGA's real strength is its spacer system, which lets you dial in length of pull from approximately 12.3 to 14.3 inches in half-inch increments. That flexibility matters: a kid learning to shoot, a shooter in heavy outerwear, and someone building a dedicated defensive gun shouldn't all be forced into the same stock dimension. The integrated recoil pad soaks up the 12-gauge's substantial impulse better than hard plastic, and the enhanced grip angle gives your hand a more natural, controllable position.
Built to handle hard use, the stock includes integral sling loops on both sides (1.25 inches), molded from Magpul's durable synthetic material and designed to stay put. The design also accepts optional cheek risers, letting you dial in proper sight picture if you're running optics or a raised sight setup. At 1.5 pounds and finished in Flat Dark Earth, it's a clean, no-nonsense upgrade that doesn't add unnecessary bulk.
| Platform | Shotgun |
| Compatibility | Remington 870 12-gauge shotgun |
| Length of Pull Adjustment Range | Approximately 12.3–14.3 inches |
| Adjustment Increment | 0.5 inch spacer system |
| Butt-Pad Dimensions | 1.5 × 5.0 inches |
| Maximum Butt Width | 1.5 inches |
| Weight | 1.5 lbs (with two spacers installed) |
| Sling Loop Size | 1.25 inches, ambidextrous |
| Material | Synthetic |
| Finish | Flat Dark Earth (FDE) |
Yes—the SGA stock is designed specifically for Remington 870 12-gauge shotguns. Verify your shotgun model before purchasing to ensure compatibility.
Yes. The spacer system allows adjustment in 0.5-inch increments, with a total adjustment range from approximately 12.3 to 14.3 inches. This flexibility helps achieve a comfortable fit across different shooters and shooting conditions.
No. The stock is designed to accept optional cheek risers separately, allowing you to add that feature if you're mounting optics or raised sights.
The product ships as a fixed stock with integrated sling loops and spacers for length-of-pull adjustment. Verify included components with the product documentation or packaging upon delivery.