Saddle Mount with Shell Holder for Mossberg 590 12-Gauge Shotgun – Picatinny Rail System

Enhance the versatility of your Mossberg 590 12-gauge with this Saddle Mount with Integrated Shell Holder, designed for slug shooting, turkey hunting, tactical applications, security, and home defense.

This rugged saddle-style mount features a full-length top Picatinny rail with 13 ring slots, allowing proper placement of scopes or red dot sights while maintaining a secure, low-profile fit. The mount straddles both sides of the receiver and installs using existing pin ports—no gunsmithing or special tools required.

A removable 3.5-inch Picatinny side rail is included, providing additional mounting space for accessories such as lights or lasers. Precision-machined from lightweight aircraft-grade aluminum with a non-glare satin black finish, this system is built to handle recoil while keeping overall weight to a minimum.

The included aluminum shell holder mounts directly to any Picatinny rail and securely holds five 12-gauge shells (2¾”–3”), keeping reloads fast and accessible even under movement and recoil. This complete saddle mount system is an ideal upgrade for shooters looking to maximize capability without sacrificing balance or reliability.

🔹 Key Features

• ✔ Designed for Mossberg 590 12-Gauge – Precision fit saddle mount system

• ✔ Full-Length Top Picatinny Rail – 5.75" rail with 13 slots for optics placement

• ✔ Removable Side Rail Included – 3.5" Picatinny rail for accessory mounting

• ✔ Integrated Saddle-Style Design – Solid one-piece mount straddles both sides of the receiver

• ✔ Easy No-Gunsmith Installation – Uses existing receiver pin ports

• ✔ Aircraft-Grade Aluminum Construction – Lightweight, durable, recoil-ready

• ✔ Non-Glare Satin Black Finish – Anodized for corrosion resistance

• ✔ Aluminum Shell Holder Included – Holds 5 shells (2¾”–3”) securely

• ✔ Fast Reload Access – Shells remain secure under recoil and movement

• ✔ Compatible with Weaver & Picatinny Optics – Works with full-size scopes and red dots

🔹 Specifications

Saddle Mount

• Material: Machined aluminum alloy

• Finish: Anodized non-glare matte black

• Weight: 5 oz

• Length: 6.8"

• Width: 1.75"

• Height: 2.25"

• Top Rail Length: 5.75"

Shell Holder

• Material: High-strength black anodized aluminum

• Capacity: 5 shells (12-gauge, 2¾”–3”)

• Weight: 5 oz

• Length: 4.75"

• Width: 1"

• Height: 1.5"