Stupid Airsoft tries CO2 power chambers on the Action Army AAC-C1 to find out how much power it can produce. The initial green gas test showed weak performance, yielding low muzzle velocities of around 250 FPS and suffering from inconsistency due to gas cooldown. The experiment then shifted to the CO2 shells, which are color-coded (M130, M150, M170) and use smaller 8-gram cartridges to release escalating amounts of gas.

Stupid Airsoft checks the spring cylinder upgrade for the Action Army AAC-C1, a airsoft sniper rifle capable of running on gas, CO2, or spring power. He begins by detailing the internal components of the VSR-spec spring kit, highlighting the metal spring guide and a unique piston design that utilizes O-rings instead of a traditional piston cup. He notes that while O-rings may wear faster, they are significantly easier and cheaper to replace than proprietary piston cups found in other high-end models.

Stupid Airsoft does two external upgrades for the Action Army AAC-C1 airsoft sniper rifle: a quick pull bolt handle and a thickened butt plate. He first details the installation of the new quick pull bolt handle, which requires partially disassembling the bolt to attach the component and give the rifle a modern, speedsoft aesthetic.

Stupid Airsoft takes a good look at the Action Army Athena, also known as the AAC-C1, which he says is an innovative airsoft sniper rifle that stands out for its unique ability to operate using three power sources: gas, CO2, and spring. The rifle is noted for its compact, lightweight design, and it features an ambidextrous stock and a very smooth bolt pull. Its distinct gas system relies on a small, magnetic reservoir located inside the bolt assembly.