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Mossberg 500 Magazine Extensions – Nordic MXT Kits | MSP

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Mossberg 500 Magazine Extensions – Nordic MXT Kits for Tactical & 3-Gun Use


Upgrade Your Mossberg 500 with Reliable, Modular Shell Extensions

Need more rounds on board? A Mossberg 500 magazine extension is the easiest way to enhance your shotgun’s performance for home defense, competition, or tactical applications. At Mounts Plus, we carry a full lineup of Nordic Components MXT extension kits, designed to increase capacity by +2 to +9 rounds while maintaining flawless reliability.

Built from hard-anodized aluminum and trusted by 3-Gun shooters and law enforcement agencies alike, these modular extensions are lightweight, easy to install, and highly customizable to your setup.


Top-Rated Mossberg 500 Magazine Extension Kits

Extension Size Capacity Gain Ideal For
+2 or +3 Compact carry Home defense, patrol, law use
+4 to +6 Tactical edge Duty use, SHTF builds
+7 to +9 Max capacity 3-Gun, competition, training

🧰 All kits include the extension tube, follower, and extended spring. Be sure to select the correct Mossberg extension nut and optional barrel clamp.


✅ Why Choose a Nordic Magazine Extension for Your Mossberg 500?

  • 🔩 Durable Aluminum Construction – Lightweight & built to last

  • 🎯 Competition-Proven – Trusted in 3-Gun and tactical circles

  • 🧱 Modular MXT System – Swap tube lengths with ease

  • 🔧 Easy Installation – No gunsmithing required

  • ✔️ Compatible with Mossberg 500, 590, 835 & Maverick 88


🧠 Mossberg 500 Magazine Extension FAQs

Q: What does a magazine extension do for my Mossberg 500?
A: It increases your shotgun’s shell capacity by +2 to +9 rounds depending on the kit. That means fewer reloads and more firepower on tap.

Q: Will this fit my Mossberg 500 Tactical or 590 model?
A: Yes! Nordic extension kits fit most 12GA Mossberg 500, 590, and even Maverick 88 models — just make sure you get the correct extension nut for your platform.

Q: Are these legal for hunting?
A: Hunting laws vary. Most states limit shell capacity while hunting, so check your local regulations before using a magazine extension in the field.

Q: Do I need a barrel clamp with the extension tube?
A: We recommend a barrel clamp for any extension longer than +4 rounds. It helps stabilize the magazine tube under recoil and provides mounting options.

Q: What tools do I need to install the extension?
A: Basic hand tools and possibly a punch for removing dimples from factory tubes (if present). Most kits are fully DIY-friendly.


🛒 Featured Products

  • Nordic MXT +5 Extension Kit – Mossberg 500 12GA

  • Nordic +9 Round Magazine Extension – Max Capacity Setup

  • Nordic +2 and +3 Kits – Compact and Tactical

  • Mossberg-Specific Extension Nuts – Nordic Thread Fit

  • MXT-Compatible Barrel Clamps – QD Sling Ready


🔗 Related Accessories


🚀 Extend Your Edge with Nordic

With a Mossberg 500 magazine extension, you're giving your shotgun a tactical edge, increased capacity, and the confidence to shoot longer without reloading. Whether you're on the range, in competition, or protecting what matters most — Nordic Components delivers the performance you can count on.

🛒 Order your Mossberg magazine extension kit now — fast shipping, expert support, and guaranteed compatibility.