American Pistolsmiths Guild

Dedicated to Excellence in the Pistolsmithing Craft

Mark Hartshorne

Shop Info

Pinnacle High Performance is a full-time, custom pistolsmith shop. This one-man shop operated by owner and pistolsmith Mark Hartshorne is located at the foot of the Blue Mountains in beautiful Kempton, Pennsylvania. Specializing in truly custom handguns, all work is performed to your needs, requirements, and specifications after thorough consultation. Pistolsmith since 1991    

Contact Info

Pinnacle High Performance Handguns

9630 Ponderosa Ct
Kempton, 19529

610-285-4392 610-285-4392 FAX

Guild History

Member in Good Standing

Handgun Brands

  • Revolvers
  • Smith & Wesson
  • Ruger
  • Taurus
  • Colt
  • 1911 style pistols
  • S&W pistols
  • CZ style pistols

Work Performed

Full custom machine shop with CNC capabilities. Combining my machine skills and hand fitting, I strive to build some of the finest and unique handguns available. Accuracy, reliability & appearance! Specializing in pistols, revolvers, full raceguns, limited stock, single actions, factory enhanced, custom carry, recreational handguns and general repair. Factory barrel re-contouring & porting Fullmoon clip conversions *Will work to clients specs and needs!

Photo Gallery

[gallery ids="1840,1841,1842,1843"]