- Compatible with the Heckler & Koch HK416 .177 Caliber BB Gun Air Rifle (2252310)
- Two 12-gram non-threaded CO2 cartridges fit inside to power the BB gun (CO2 NOT included)
- Includes a CO2 piercing tool
- For use with .177 caliber airgun BBs
Power up your officially licensed Umarex HK416 .177 BB airgun with this spare/replacement mag. Two 12 gram non-threaded CO2 cartridges (NOT included) fit inside this mag to power the HK 416 BB gun. This replacement mag comes with a CO2 piercing tool.
