TacStar Industries AR Stock Adapter for Mossberg Shotguns

If you run a Mossberg 500 or 590 shotgun and want the ergonomic flexibility of AR-platform controls, the TacStar Industries AR Stock Adapter bridges that gap. This die-cast metal adapter lets you mount standard AR-15 telescoping stocks and compatible pistol grips to your shotgun receiver, giving you modularity that factory shotgun furniture can't match. Built from tough metal alloy rather than polymer, it adds structural rigidity and a bit of weight—both desirable traits when you're managing shotgun recoil.

The adapter is engineered to sit flush with Mossberg receiver contours and maintains proper sight picture alignment for bead or ghost ring sights right out of the box. It accepts most AR-15 grips without a beavertail, or those with flexible rubber beavertails like Pachmayr, Ergo, and some Hogue models. You'll also get QD sling attachment points on both sides, so mounting a single- or two-point rig is straightforward.

Installation is uncomplicated—no gunsmithing required. The adapter simply replaces your factory stock assembly and accepts industry-standard AR components, opening up dozens of aftermarket stock options. Whether you're building a home-defense shotgun with tactical ergonomics or a sport-clays gun with a modern handling profile, this adapter makes it happen without replacing the receiver itself.

Key Features

• Die-cast metal construction for strength and recoil absorption
• Accepts standard AR-15 telescoping stocks and compatible pistol grips
• Designed for Mossberg 500 and 590 shotguns
• Maintains proper sight alignment for bead and ghost ring setups
• Dual QD sling attachment ports
• Factory receiver contours for seamless fitment

Specifications

Frequently Asked Questions

Will this adapter work with my Mossberg 500 or 590?

Yes, the TacStar adapter is designed specifically for Mossberg 500 and 590 shotguns. It mounts to the receiver where the factory stock assembly attaches.

What AR-15 stocks and grips can I use?

The adapter accepts any standard AR-15 telescoping stock and AR-15 pistol grips without a beavertail, or those with flexible rubber beavertails (such as Pachmayr, Ergo, and some Hogue models). Grips with rigid beavertails may not fit.

Does this come with a stock and buffer tube?

No, the adapter is sold without a buffer tube or stock. You'll need to source those separately to complete your build.

Will my bead or ghost ring sights still work after installation?

Yes, the adapter is designed with proper drop to maintain correct sight picture alignment for both bead and ghost ring sights.