Big Horn Armory AR500 Next Gen

When you pick up the Big Horn Armory AR500 Next Gen, the first thing you notice is the heft—and then you realize what that heft means. This is not a typical AR-platform rifle. It is a purpose-built, big-bore semi-automatic chambered in .500 Auto Max, engineered for shooters who need stopping power that goes far beyond what intermediate cartridges can deliver. The Big Horn Armory AR500 Next Gen takes the proven AR500 platform and refines it with modern improvements in ergonomics, reliability, and durability.

Overview

The Big Horn Armory AR500 Next Gen represents the latest evolution of the company’s flagship big-bore rifle. Built around the massive .500 Auto Max cartridge, this rifle delivers energy levels that rival traditional dangerous-game bolt actions, but in a familiar, fast-handling AR-style package. The Next Gen model incorporates feedback from guides, hunters, and serious shooters to improve handling under recoil, increase magazine reliability, and streamline the overall shooting experience. Whether you are facing large predators in thick cover or simply want a rifle that leaves a lasting impression at the range, the Big Horn Armory AR500 Next Gen delivers.

Features & Specs

• Caliber: .500 Auto Max — a proprietary cartridge that pushes heavy projectiles at velocities that produce devastating terminal performance.
• Barrel: 16-inch, heavy-profile, chrome-moly steel with a nitride finish for corrosion resistance and extended service life. Threaded 5/8×24 with a included thread protector.
• Gas System: Adjustable, short-stroke piston system that tames the .500 Auto Max recoil impulse and keeps the action running clean even with suppressed fire.
• Stock & Grip: Magpul MOE SL-K collapsible stock and MOE K2+ grip, providing a secure hold and comfortable cheek weld under heavy recoil.
• Handguard: 12-inch M-Lok free-float handguard with full-length Picatinny top rail for mounting optics, lights, or lasers without interference.
• Trigger: Geissele SSA-E two-stage trigger, offering a crisp, clean break that aids accuracy with this powerful cartridge.
• Magazine: Includes one 5-round steel magazine. The lower receiver is designed specifically for the .500 Auto Max cartridge for reliable feeding.
• Weight: Approximately 9.5 pounds unloaded — substantial enough to absorb recoil, maneuverable enough for still-hunting.

The Big Horn Armory AR500 Next Gen is not a lightweight plinker. It is a serious tool for serious work.

Who It’s For

This rifle is for the shooter who needs a semi-automatic that can handle the largest North American game and dangerous predators without hesitation. It is for the hunter who wants fast follow-up shots in thick timber or alder thickets where a charging bear leaves no time for a bolt cycle. It is also for the collector who appreciates engineering that pushes the AR platform to its logical extreme. The Big Horn Armory AR500 Next Gen is not for beginners—it demands respect and basic proficiency with high-recoil firearms. But if you have the experience and the need, this rifle will not let you down.

Shipping & FFL

This rifle ships to your chosen Federal Firearms License (FFL) dealer within the contiguous United States. After you place your order, we will contact you to confirm your FFL’s current license information on file. Please ensure your chosen dealer is willing to accept and process the transfer. Once we receive the FFL copy and your payment clears, we will ship the Big Horn Armory AR500 Next Gen via a carrier that requires an adult signature. All federal, state, and local laws apply. It is your responsibility to verify that you can legally purchase and possess this rifle in your jurisdiction. We do not ship to PO boxes for firearms. Typical processing time is 3-5 business days before shipment, depending on FFL verification. Contact our team with any specific shipping questions before ordering.

Specifications

Manufacturer Specifications

Caliber	.500 Auto Max — a proprietary cartridge that pushes heavy projectiles at velocities that produce devastating terminal performance.
Barrel	16-inch, heavy-profile, chrome-moly steel with a nitride finish for corrosion resistance and extended service life. Threaded 5/8×24 with a included thread protector.
Gas System	Adjustable, short-stroke piston system that tames the .500 Auto Max recoil impulse and keeps the action running clean even with suppressed fire.
Stock & Grip	Magpul MOE SL-K collapsible stock and MOE K2+ grip, providing a secure hold and comfortable cheek weld under heavy recoil.
Handguard	12-inch M-Lok free-float handguard with full-length Picatinny top rail for mounting optics, lights, or lasers without interference.
Trigger	Geissele SSA-E two-stage trigger, offering a crisp, clean break that aids accuracy with this powerful cartridge.
Magazine	Includes one 5-round steel magazine. The lower receiver is designed specifically for the .500 Auto Max cartridge for reliable feeding.
Weight	Approximately 9.5 pounds unloaded — substantial enough to absorb recoil, maneuverable enough for still-hunting.
SKU	ac-big-horn-armory-ar500-next-gen-04766d
Price	$1263.85
Stock Status	Instock

Frequently Asked Questions

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