K.K. Cinematic Airsoft reviews an aftermarket Toxicant CO2 magazine for the Tokyo Marui MWS gas blowback rifle, with a focus on its practical use in cold weather. The reviewer set out to determine if this magazine is a viable option for players who want to use their gas rifle during the winter months.

The testing demonstrated that the CO2 magazine performs exceptionally well in the cold. After being chilled in a freezer, the magazine maintained consistent muzzle velocity and allowed the rifle to cycle correctly, including achieving a proper bolt lock. This stands in stark contrast to the standard green gas magazine, which failed to function reliably and showed a significant drop in velocity under the same conditions.

However, he emphasizes that the magazine is not recommended for everyone because it requires significant technical adjustment. Out of the box, it often exceeds legal velocity limits, necessitating modifications, such as custom-tuning the gas route packing. Ultimately, while it is highly effective for maintaining performance in the cold, its high cost and mandatory, complex adjustments mean it is best suited only for experienced and dedicated users.