COP 357

Specifications:

  • Designer(s):  Robert Hillberg
  • Manufacturer:  COP Inc.
  • Model:  COP 357
  • Caliber:  .357 Magnum
  • Capacity:  4
  • Operation:  Rotary firing pin
  • Action:  Double Action Only

Mini COP

Specifications:

  • Designer(s):  Robert Hillberg
  • Manufacturer:  COP Inc.
  • Model:  Mini COP
  • Caliber:  .22 Winchester Magnum Rimfire
  • Capacity:  4
  • Operation:  Rotary firing pin
  • Action:  Double Action Only
The COP (short for Compact Off-duty Police) 357 was designed by Robert Hillberg 1981 and manufactured by COP Inc. from 1981 until at least 1983. It is a 4-barrel derringer chambered in .357 Magnum, and utilizes a clockwise-rotating firing pin mechanism to fire each round individually. A very space-age design, the COP has been featured in prominent science-fiction films and television shows, to include: Blade Runner, The Matrix Reloaded, Battlestar Galactica, and Stargate SG-1.
At least one example of the Mini COP was produced in .22 Winchester Magnum Rimfire. Advertisements state that a .22 Long Rifle version was available for sale, but it is unknown whether or not any examples were produced. However, it is known that COP Inc. did make and sell a .22 Long Rifle conversion kit that was comprised of four separate barrel inserts.

Patents:

US Patent 4,416,078 / 4,424,638
"Handgun"
Filed by Robert L. Hillberg, January 14th, 1980

US Patent 4,400,901
"Firearm having inertially responsive safety mechanism"
Filed by Robert L. Hillberg, August 5th, 1981

US Patent 4,400,900
"Multi-barrel handgun firing mechanism"
Filed by Robert L. Hillberg, October 2nd, 1981

US Patent 4,407,085
"Handgun firing mechanism"
Filed by Robert L. Hillberg, October 2nd, 1981

US Patent 4,472,901
"Pistol grip assembly"
Filed by Robert L. Hillberg, November 27th, 1981

US Patent 4,392,320
"Trigger retaining and stabilizing means"
Filed by Robert L. Hillberg, April 29th, 1982

Publications:

COP Owner's Manual
COP Inc.

Videos:

Pricing:

We are currently unaware of any pricing for this firearm design. If you know of any, please contact us so that we may add it to help further firearms history education.

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