The 8.4v 4200mAh NiMH High Output Battery pack fits into most solid stocks and allows for longer playing times similar to other 8.4v large battery packs. However, the batterys higher output will give your gun a faster rate of fire than other batteries of the same size. This battery pack fits well in guns with solid stocks like the M16, Ak, or the MP5A4.

Features:

• 8.4v Battery
• Milliampere Hours: 4200mAh
• Cell Type: Nickel-metal Hydride (NiMH)
• Connector Type: Large
• Recommended Fit: M16, SR16, Full Stock AK Series, and Full Stock MP5 Series
• Rapid Charge up and High Drain Current up to 40 amp