The STI Duty One BB Pistol is a full-metal, CO2-powered airgun with realistic blowback action, adjustable rear sight, and a tactical rail for accessories. Reliable and ideal for concealed carry training, it’s a fun and authentic airgun for shooters of all levels.

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This Non-blowback version DUTY ONE is fully licensed by the famous high-end small arms manufacturer STI International, based in Texas, USA. The .177 steel BB’s are stored in the drop-out magazine and powered by a 12g CO2 cartridge which is cleverly kept away in the pistol grip thanks to the easyload system. The airgun is semi automatic and based on the classic model 1911 but STI has upgraded and changed the design and many of the functions. The frame has an integrated front weaver rail for mounting light and laser. The grip is marked with an STI logo and the high rise beaver-tail grip, secures a perfect hold on the pistol. Furthermore the pistol has unique serial number. The metal slide has beautiful authentic STI markings.


  • Barrel threaded for silencer
  • Non-blowback
  • Integrated front Weaver rail for mounting light or laser
  • Metal slide
  • CO2 Powered
  • Semi-auto
  • Drop-out, easy to load magazine
  • CO2 cartridge conveniently located in the grip
  • 20-rd magazine
  • Beavertail grip
  • Fix sights


Manufacturer STI
Caliber 0.177 cal
Condition New
Ammo Type  Steel BBs
Blowback No
Gun Weight  1.82 lbs
Overall Length  8.66″
Barrel Length 4.55″
Mechanism CO2
Use Plinking/Fun
Magazine Capacity 20