The STI Duty One is a semi-auto .177/4.5mm steel or copper bb pistol which uses a 12g CO2 cylinder. The pistol comes with a 20 shot magazine and should get 50-60 shots out of a single CO2 canister.
| Caliber: | 4.5 mm (.177 cal) |
| Barrel: | 4.55 Inch |
| FPS: | 350 to 400 |
| Action: | Semi-Automatic |
| Ammo: | Steel BB |
| Power Source: | Co2 |
| Rail: | Weaver |
| Trigger Action: | Double |
| Body: | 1911 |
| Blowback: | Blowback |
| Safety: | Manual |
| Front Sight: | Blade |
| Rear Sight: | Fixed |
| Barrel Length: | 11.6 cm (4.55 inch) |
