Used indoors and very little, only ran one full 12g CO2 cartridge through it. Realistic weight. This SIG SAUER P320/M17 airgun is based on the current sidearm of the US military. The CAF has officially announced that the P320 will be used by the CAF as well (the main reason I originally bought it). This airgun was originally bought last year for $185.24, and $23.74 for the two extra rotary belts, listed price reflects taxes, as well as comparable current price elsewhere. Camouflage Canada website sells extra of the magazines, which I could not find when I originally bought this, in case you would rather swap entire magazines, rather than rotary belts in one magazine, for more realism. While it is not as realistic as it could be (no slide lock, weird slide disassembly, magazine with rotary belt, etc.), the main appeal as a training weapon is the realistic weight for dry fire, form, and draw/holster practice. Pick up from Victoria BC, or shipped at buyers expense in maybe a $20, or definitely in a $25, flat rate box.