Black Ops by Bear River Holdings Tactical M4 Viper Assault Rifle, B1575 - Black Ops M4 Viper Assault Rifle - High Density Polymer Construction and RIS Rail Shroud - Lightweight Design - Low Profile Fiber Optic Flip-Up Sights - Crane Stock with Metal Mil-Spec Buffer Tube - 420fps w/ .12g - Steel Gears - 9.6v 1500mAH Battery and Charger Included - HiCap 300rnd Magazine - LiPo Ready - Rear Wired Mini-Tamiya w/ Fuse - Made in Taiwan