Once the LiPo was installed into the stock compartment

these goggles can be used daily as normal sunglasses

Dye thermal lenses provide the bench mark for anti-fog performance

It has an internal BB storage tank that holds 2000 BBs

Gearbox's surface is decoratively anodized

KWA KM4A1 HPA System Once the LiPo was installedThe KWA KM4A1 Carbine was the first production AEG engineered specifically for the unparalleled performance of todays advanced battery technology Lithium Polymer (LiPo). LiPo batteries provide higher capacity and superior performance surpassing the more common Nickel Metal Hydride (NiMh) batteries. However, this powerful battery requires the highest quality of internal components. To handle the extra power of LiPo batteries, the KM4A1 is equipped with