Description

Big Horn Armory has just expanded their AR500 NEXT GEN platform with new Cerakote options, and for the serious shooter in East Tennessee, this is a significant announcement. This isn’t just another AR. This is a purpose-built, semi-auto powerhouse chambered in .500 Auto Max, a rimless cartridge that brings the legendary energy of a .500 S&W Magnum into a modern, magazine-fed platform. For our customers in Knoxville and the surrounding areas who hunt in dense Appalachian brush, pursue bear or boar, or simply demand the ultimate in close-to-medium range stopping power from a familiar AR-style rifle, the Big Horn Armory AR500 NEXT GEN represents a unique and formidable tool. We’re excited to offer these new factory Cerakote finishes, giving you a rifle that’s as tough as it looks.

Specs at a Glance

• Manufacturer & Model: Big Horn Armory AR500 NEXT GEN
• Chambering: .500 Auto Max (derived from .500 S&W Magnum)
• Action: Semi-Automatic
• Platform: AR-Style Architecture
• Configurations: Available as a complete rifle, pistol, or as a conversion upper for compatible AR-10 pattern lowers
• New Feature: Multiple factory Cerakote finish options now available
• Purpose: Hunting, sport shooting, and professional applications requiring exceptional energy delivery

Why We’re Stocking This

At Firearms Alabama, we stock tools that solve real problems for our customers. We’ve handled the Big Horn Armory AR500 NEXT GEN, cycled the action, and felt the substantial heft of that .500 Auto Max cartridge. This platform fills a gap that few others can. While the standard AR-15 in .223 is a fantastic versatile tool, and the AR-10 in .308 brings more power, the AR500 NEXT GEN operates on a completely different level of terminal ballistics. It’s for the shooter who needs to decisively anchor large game in thick cover where penetration and energy transfer are non-negotiable. We’re stocking the Big Horn Armory AR500 because it’s an expertly engineered bridge between the accessible, modular world of the AR and the raw power of a big-bore cartridge. The new Cerakote options are the finishing touch, offering our customers enhanced durability and a personalized look right from the factory.

This isn’t a niche firearm we keep in the back; it’s a statement piece of modern American gunmaking that we believe deserves a spotlight. We trust Big Horn Armory’s engineering, and more importantly, we’ve seen the demand from our own community for a reliable, semi-auto platform that doesn’t compromise on power. Bringing in the AR500 NEXT GEN, especially with these new durable finishes, allows us to provide a solution that is as serious as the terrain and the game our local hunters face.

Who It’s For

• The Appalachian Game Hunter: Specifically pursuing black bear, wild boar, or other large game in the dense, close-quarters terrain of the Southeast. The .500 Auto Max cartridge delivers the deep penetration and massive energy transfer needed for ethical, one-shot stops.
• The Big-Bore Enthusiast & Sport Shooter: The shooter who appreciates the physics of powerful cartridges and wants to experience that performance in a fast-handling, low-recoil (for its class) semi-auto platform. It turns big-bore shooting from a revolver or single-shot experience into a modern tactical one.
• The Professional in Need of a Power Tool: While not a military cartridge, the AR500 NEXT GEN has legitimate applications for professionals in dangerous game protection, specific law enforcement roles, or security in remote areas where threat escalation is extreme.
• The AR Platform Aficionado: The collector or shooter who has “everything” in the AR world and is looking for the ultimate expression of the platform’s power potential. The ability to run it as a dedicated rifle or as an upper on an existing AR-10 lower is a huge plus for this user.
• The Preparedness-Minded Individual: For those who prioritize capability for worst-case scenarios in wilderness or remote settings, the AR500 NEXT GEN offers a level of defensive power against large predators or for barrier penetration that standard intermediate cartridges cannot match.

Frequently Asked Questions

Q: Is the .500 Auto Max cartridge readily available, and can I reload for it?

A: Ammunition availability is growing as the platform gains popularity. We recommend checking with us for current stock, and we can help source it. For reloaders, this is a major advantage. The .500 Auto Max is a rimless, straight-walled cartridge derived from the .500 S&W Magnum. This means you can use readily available .500 S&W bullets and dies, with specific brass and load data from Big Horn Armory. It’s a reloader’s dream for a semi-auto big bore.

Q: How does the recoil of the Big Horn Armory AR500 NEXT GEN compare to a .308 or 12-gauge slug gun?

A: Having fired it ourselves, we can say the recoil is substantial but remarkably manageable for the power level. The gas-operated semi-auto action, combined with the rifle’s weight and an effective muzzle brake (standard on many models), spreads the impulse out. It’s more of a heavy push than a sharp snap. It’s noticeably more than a .308 but often perceived as less punishing than a hard-kicking 12-gauge slug gun due to the different recoil impulse and ergonomics. It’s absolutely shootable for any experienced shooter.

Q: I have an AR-10 lower. Will the AR500 NEXT GEN upper fit and function on it?

A: This is one of the best features of the platform. Yes, the AR500 NEXT GEN is designed as a conversion upper for AR-10 pattern lowers that use DPMS-style pattern pins. You will need the specific Big Horn Armory .500 Auto Max magazine, but the upper should drop onto your compatible lower. We always recommend a function check with any new upper/lower combination. This modularity makes the Big Horn Armory system incredibly flexible and cost-effective for someone already invested in the AR-10 platform.

In Stock & Ready to Ship

The new Cerakote options for the Big Horn Armory AR500 NEXT GEN are available for order now through our shop. We are taking specifications for the exact configuration—rifle, pistol, or upper—and your preferred finish. This is a specialized firearm, and we are committed to getting you the exact model you want. If you’re in the Knoxville area, come by Firearms Alabama to discuss this formidable platform in person. If you’re outside our local area, we can handle the transfer to your FFL. Don’t just read about the most powerful semi-auto AR platform on the market; own one. Contact us today to secure your Big Horn Armory AR500 NEXT GEN.