Magpul SGA Stock for Mossberg 500/590/590A1 12 Gauge – FDE

Description

The factory stock on a Mossberg 500 or 590 does the job, but it never quite fits everyone the same. Magpul's SGA Stock fixes that with a spacer system that adjusts length of pull from roughly 12.3 to 14.3 inches in half-inch steps, so you can set it up for a bigger frame, a smaller build, or somebody bundled up in heavy hunting layers. It's an ambidextrous, user-configurable buttstock that brings some genuine adjustability to a platform that's been running strong for decades.

What the SGA Stock Brings to Your Mossberg

The textured, angled pistol grip area gives you positive traction and a natural hand position, which matters when you're working the pump fast or shooting in wet weather. The rubber recoil-reducing buttpad soaks up a noticeable amount of the punch you get from stout 12 gauge loads, and the reworked ergonomics keep everything feeling planted against the shoulder. If you run an optic or raised sights, Magpul offers optional cheek risers (sold separately) that lift your comb height so your eye lines up right where it needs to be.

Installing the Magpul SGA on a 500 or 590

This is a true drop-in job. Pull the factory stock bolt, slide the SGA into place, and torque the bolt back down with simple hand tools. No gunsmithing, no fitting, no headaches. It fits the Mossberg 500, 590, and 590A1 12 gauge series, and it also works on the Maverick 88.

A Sling Setup That Just Works

The SGA has integral 1.25-inch sling loops on both the right and left side, so whatever carry system you already run will mount up without buying extra hardware. Built in the USA from reinforced polymer, it weighs about 1.5 pounds set up with spacers and holds up to hard, repeated use. The Flat Dark Earth finish blends right in with a working shotgun and pairs nicely with matching furniture down the line.