Acetech AC5000 Airsoft Chronograph Motor Grips but if you are comfortable

but if you are comfortable without it

LiPo batteries are generally good for 300 charge/discharge cycles over its lifetime

These are good quality

Red Dot sight battery pack that fits in the R8-L Scope and many more red dots for airsoft

The mount gives you a secure and solid attachment to customer your sidearm setup

Acetech AC5000 Airsoft Chronograph Motor Grips but if you are comfortableThe Acetech AC5000 Airsoft Chronograph is a portable BB chrono for use with airsoft guns. Measure your FPS (feet per second), Joules, ROF, and everything else on one handy screen. Uses a micro usb power adapter cable or 2x AA batteries to operate (cable and or batteries not included) with this awesome device. Great for fields with its battery operation. Very accurate and speedy readings from this new chrono! The battery powered option is great for