Black Ops M4 Viper Mk5 Airsoft AEG Rifle .20 .25 BB Ammo;

The M4 Viper Mk5 assault rifle from Black Ops USA is a competitive, solidly built AEG that looks great and shoots even better. With fiber optic flip up sights, a free-floating, quick release rail system, and an adjustable crane stock, this rifle is ready for battle right out of the box. With a lightweight receiver engineered for durability, and internals designed for accuracy, the M4 Viper Mk5 delivers up to 420fps with .12g BBs, and includes a 8.4v 1100mAH battery. The M4 Viper Mk5 is also a solid platform for upgrades and customization, compatible with most M4 internals and with plenty of rail space for optics, grips, lights, and other accessories.