Skip to main content

500 Auto Max Big Horn AR500

500 Auto Max Big Horn AR500
The Big Horn Armory AR500 in 500 Auto Max

Big Horn Armory, makers of big-bore firearms, introduced their latest big bore gun in an AR platform, different from this earlier models. The Big Horn Armory AR500 in 500 Auto Max is available to big game hunters, big bore aficionados and law enforcement.

The gas operated AR500 was designed and produced by Big Horn Armory in the USA and is based on a DPMS style AR 308. The lightweight aluminum receiver features grooves cut into the front of the mag well for a confident grip and additional grooves in the front of the trigger to allow a finger rest while not firing. All steel parts have been salt-bath nitrite finished for corrosion resistance.

"All we do at Big Horn Armory is design and make big bore gun. Using the 500 S&W magnum cartridge as our springboard, we wanted to bring back the concept of hunting using big bore cartridges for the simple reason it puts game down immediately, regardless of the bullet's construction or speed. As hunters ourselves, our goal is to bring game down efficiently and ethically." - Greg Buchel, President of Big Horn Armory

The 500 Auto Max was developed by Big Horn Armory using a 500 S&W rimless straight walled casing. With a variety of loads available, the 500 Auto Max can exceed 4,000 FPE, making it a good choice for Dangerous Game, world-wide.


AR500-left-O-Basin-cropped

The AR500's precision machined stainless steel barrels are surface hardened to Rc82 with Big Horn Armory's Nitride process for consistent downrange performance and in-the-field dependability. The 18-inch barrel is threaded at a ¾-inch x 28 TPI, standard for most 50 caliber muzzle devices and ships with a standard flash suppressor.


Big Horn Armory's 500 Auto Max is a rimless version of the 500 S&W with the same ballistics. It is capable of feeding and firing any .500 diameter bullet between 200 and 700 grains. The AR500 has an adjustable gas block to allow the user to run sub sonic loads using a suppressor. 500 Auto Max ammunition is currently shipping from Buffalo Bore and Underwood Ammo. It is also available at Midway USA.

For more information, visit: http://www.bighornarmory.com.

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

See More Recommendations

Popular Videos

Gemtech Suppressors: Testing the Patrolman, the One and the Tracker

Gemtech Suppressors: Testing the Patrolman, the One and the Tracker

Patrick Sweeney tests and reviews a trio of Gemtech suppressors.

Pioneer Arms PPS-43C Pistol

Pioneer Arms PPS-43C Pistol

The PPS-43 served Poland and the Russians during WWII. It is now available as a pistol for the US market.

DL Sports SLR 762 Carbine

DL Sports SLR 762 Carbine

Patrick Sweeney tests out the DL Sports SLR 762 Carbine, an AK47 has been refined and civilized by Dave Lauck and DL Sports.

Ruger Mini 30

Ruger Mini 30

Patrick Sweeney reviews Ruger's classic semi-auto chambered in 7.62x39, and why it's the perfect deer or pig gun! See Ruger for more details.

See More Popular Videos

Trending Articles

The Wilson Combat-SIG Sauer WCP320 pistol is now legal for IDPA Stock Service Pistol Class Competition and USPSA Production/Carry Optics Classifications.WCP320 Pistol Now Legal for IDPA and USPSA Handguns

WCP320 Pistol Now Legal for IDPA and USPSA

Firearms News Staff - August 14, 2020

The Wilson Combat-SIG Sauer WCP320 pistol is now legal for IDPA Stock Service Pistol Class...

We go behind closed doors at the factory to see how SIG Sauer's ammo is developed and manufactured!SIG Sauer Ammunition — How Good Is It? Ammo

SIG Sauer Ammunition — How Good Is It?

Tom Beckstrand - August 20, 2020

We go behind closed doors at the factory to see how SIG Sauer's ammo is developed and...

The Fifth U.S. Circuit Court of Appeals has unanimously ruled that New Jersey Attorney General Gurbir Grewal is “subject to the jurisdiction of Texas courts” in a First Amendment case brought by Defense Distributed, a Texas-based firm, and the Second Amendment Foundation.SAF, Defense Distributed Win Court Victory in 3D Gun Case 2nd Amendment

SAF, Defense Distributed Win Court Victory in 3D Gun Case

Second Amendment Foundation - August 22, 2020

The Fifth U.S. Circuit Court of Appeals has unanimously ruled that New Jersey Attorney General...

Governor Mike DeWine's STRONG Ohio anti-gun bill is facing strong, unified opposition.Opposition to 'STRONG Ohio' Remains Strong 2nd Amendment

Opposition to 'STRONG Ohio' Remains Strong

Buckeye Firearms Association - August 24, 2020

Governor Mike DeWine's STRONG Ohio anti-gun bill is facing strong, unified opposition.

See More Trending Articles

More Rifles

Rock River Arms announces their newest predator rifle, the Fred Eichler Series Light Predator2L featuring lightweight, carbon fiber handguards.Rock River Arms Introduces New Fred Eichler Series Light Predator2L Rifles

Rock River Arms Introduces New Fred Eichler Series Light Predator2L

Rock River Arms - February 16, 2021

Rock River Arms announces their newest predator rifle, the Fred Eichler Series Light...

Savage Arms introduces its first straight pull rifle: the Impulse.Savage Arms Impulse Straight Pull Rifle - First Look Rifles

Savage Arms Impulse Straight Pull Rifle - First Look

Firearms News Staff - January 05, 2021

Savage Arms introduces its first straight pull rifle: the Impulse.

The Kel-Tec SU-16C rifle is survivalist rifle gadgetry at its best!Kel-Tec SU-16C Rifle Review Rifles

Kel-Tec SU-16C Rifle Review

Vincent L. DeNiro - November 23, 2020

The Kel-Tec SU-16C rifle is survivalist rifle gadgetry at its best!

The Ruger Mini 30 is a great “Woods Carbine” ready for deer or hogs! Plus, a review of the Pulsar XM50 Thermal Optic!Ruger Mini 30 Review Rifles

Ruger Mini 30 Review

Patrick Sweeney - October 07, 2020

The Ruger Mini 30 is a great “Woods Carbine” ready for deer or hogs! Plus, a review of the...

See More Rifles

Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW OUR CURRENT ISSUE Arrow

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Firearms News App

Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Phone Icon

Get Digital Access.

All Firearms News subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now