The latest in the Systema 2008 models is now available at Airsoft Skirmish, the Systema 2008 M4A1 Max 2 PTW.... "Designed for police and military training purposes, the Systema PTW is the utimate rifle for airsoft lovers, and a demonstration of Systema's high level of commitment in product quality. Every part of the gun fits together perfectly, with precise aluminum die cast receiver you can feel the body's rigidity being much better than the regular AEG's in the market (like Classic Army, G&P, etc). This is more than just a toy! Real size, real weight and real balance. With all internal components tuned for extreme performance out of the box! Split design type gearbox allows you to swap in and out springs very quickly to change power levels."