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

Leupold Freedom RDS

Leupold Freedom RDS

Patrick Sweeney reviews the Leupold Freedom RDS optic with bullet drop compensator!

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

In the golden age of daily carry options, the Springfield Armory Hellcat OSP pistol is a helluva deal!Springfield Armory Hellcat OSP Review Handguns

Springfield Armory Hellcat OSP Review

Patrick Sweeney - August 12, 2020

In the golden age of daily carry options, the Springfield Armory Hellcat OSP pistol is a...

While Germany is the Edenic home of modern sniping, they were always one step behind the Soviets during World War II, despite fielding some excellent sniper rifles.German Sniper Rifles of World War I and II Rifles

German Sniper Rifles of World War I and II

David M. Fortier - August 13, 2020

While Germany is the Edenic home of modern sniping, they were always one step behind the...

First fielded during World War I, the Browning Automatic Rifle or BAR went on to serve through World War II, Korea and into Vietnam.Inside Story on the .30-caliber BAR Historical

Inside Story on the .30-caliber BAR

Samantha Knight - August 15, 2020

First fielded during World War I, the Browning Automatic Rifle or BAR went on to serve through...

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...

See More Trending Articles

More Rifles

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!

If you have always wanted a real GI M1 carbine, Royal Tiger Imports has found a cache for shooters and collectors!Royal Tiger Imports GI M1 Carbines Rifles

Royal Tiger Imports GI M1 Carbines

David M. Fortier - September 03, 2020

If you have always wanted a real GI M1 carbine, Royal Tiger Imports has found a cache for...

Flat-­shooting, soft and accurate, the AK47 has been refined and civilized by Dave Lauck and DL Sports. Patrick Sweeney takes this refined AK47, the DL Sports SLR 762 Carbine, to the range for a test drive.DL Sports SLR 762 Carbine Rifles

DL Sports SLR 762 Carbine

Patrick Sweeney - September 01, 2020

Flat-­shooting, soft and accurate, the AK47 has been refined and civilized by Dave Lauck and...

The ATI Milsport 450 Bushmaster rifle is an economical and powerful Information Age hunting firearm.ATI Milsport .450 Bushmaster Rifle Review Rifles

ATI Milsport .450 Bushmaster Rifle Review

Will Dabbs, MD - October 19, 2020

The ATI Milsport 450 Bushmaster rifle is an economical and powerful Information Age hunting...

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