SPG
"Professional Gunsmithing and Firearm Sales"
SPG is your .300 AAC Blackout
and 10MM Auto Specialist

1911 Pistols - SPG Signature Series

The SPG Signature Series 1911 is here!! Review the sales flyer here and the build sheet here. In addition to customizing your current old or new 1911, SPG offers an affordable semi-custom 1911 pistol that is 100% American made. Each base-model Oriskany Arms all steel full size pistol is modified and hand tuned by SPG​ to deliver a superior customized factory pistol at a production pistol price. Contact us today for more information on this exclusive 1911 pistol from Sheaffer Precision Gunworks.

SPG Provides a Variety of 1911 Gunsmithing Services Including:

  • Professional detailed stripping and cleaning.
  • Installation of Wolff spring packages tuned to your ammunition.
  • Front and rear sight replacement with target or tritium night sights.
  • Front and rear sight replacement with target or tritium night sights.
  • Feed ramp and chamber polishing and throating.
  • Trigger tuning and custom trigger installations.
  • Frame and slide tightening
  • Barrel fitting and bushing fitting
  • Mainspring housings, grip safeties and ambi thumb safeties.
  • Magazine well beveling and custom mag well installation.
  • General polishing and Cerakote finishes.
  • Malfunction trouble shooting and reliability work.
  • Specialty tuning for 9MM, .38 Super, .45 ACP and our specialty the 10MM Auto 1911's.
  • And much more……………

SPG is known for its 1911 triggers, call us to discuss how to get the finest trigger pull possible and all the other ways we can improve and maintain this American icon. Because at SPG we love the 1911 as much as you do.