Hello, My name is Mark Hartshorne, Pistolsmith and owner of Pinnacle High Performance Handguns. I have been a tool and die maker since 1982, and since 1991 have blended my toolmaking skills into the gunsmithing trade, working on virtually every major brand of handgun, and building high-quality competition and carry handguns.

One of my proudest moments was being accepted into the American Pistolsmiths Guild in January of 2004. 

Studying under master gunsmiths and working hand in hand with champion shooters, I have come to know what competition shooters need and demand to win, and what recreational shooters need to enjoy their shooting.

Whether your game is competition shooting, you need a safe and reliable carry revolver, or accurate, comfortable hunting revolver, Pinnacle High Performance, a REAL custom gun shop, is here to give you the personal attention you desire to help you reach your peak performance! Thank you, – 

- Mark Hartshorne 


The pages on this site are general guidelines about some of the services available for gunsmithing on Revolvers.

Since this is a custom shop not all services can be listed. You are encouraged to call and discuss all of your options. Remember! This is a custom shop here to give you all the personal attention you deserve!

*American Pistolsmith Guild Member Class of 2004

  • 4 Time PA State Pinshooting Champion
  • 8 Time PA State Steel Shooting Champion (Rev. Class)
  • Second Chance Master Blaster
  • USPSA Member (16457) and Competitive IPSC Shooter
  • ICORE Life Member and competitive shooter
  • NRA Member
  • Tool Maker since 1982
  • Pistolsmith since 1991