Country of origin

United States of America


Auto Mag Corporation


Harry Sanford
Max Gera

Year(s) designed

1966 - 1971

Production began


Production ended


Weapon type

Semi-automatic pistol


.44 AMP
.357 AMP
.300 AMP
.45 Winchester Magnum
.45 ACP (experimental)
.475 AutoMag
.41 JMP
.30 LMP
.25 LMP
.22 LMP
.45 ACP Magnum (Experimental)
.40 KMP
8mm KMP


Short-recoil, rotating bolt

Overall length

11.5 inches (29.21 cm)

Barrel length

6.5 inches (16.51 cm)


3 pounds 9 ounces (1.62 kg)

Magazine/Cylinder capacity

7 round single stack box magazine

The AutoMag is a large caliber pistol designed by Harry Sanford.


The gun was conceived to put revolver power into a modern semi-automatic pistol. The Auto Mag Corporation, the company that produced the gun, was short-lived; it shipped the first gun on August 8, 1971, and declared bankruptcy on May 3, 1972. The company reopened multiple times under various names, including Arcadia Machine and Tool. Experimental designs could fire calibers such as .357 AMP and .45 ACP, with caliber changing only requiring a barrel switch. It sold for about $217.50 at launch.

Design DetailsEdit

The gun used a short-recoil system like the one used on an AR-15 or M16. It had a rotary bolt with locking lugs at the front.


The gun used the .44 AMP cartridge (10.74x33mm), along with a bunch of other cartridges. The cartridge is straight-walled, and is rimless, formed by trimming a .308 Winchester or .30-06 Springfield cartridge to 1.08 inches (33 mm).


AMT, the Auto Mag Corporation's successor, made five more pistols under the "AutoMag" name.


Because of its looks, the AutoMag has appeared in many films, books and games, such as:

  • The Executioner
  • Sudden Impact
  • Warlord
  • A Drink Before The War
  • Beverly Hills Cop II
  • Death Merchant
  • Invincible Steel Man Daitarn 3
  • City Hunter
  • Grand Theft Auto: The Ballad of Gay Tony


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