The bb's we like with this is:

1v Li-Po G-11-041 Inner Barrel Length 6

Comes with an integrated triple magazine kangaroo pouch with retention cords to safely secure magazines

Form / Size Factor: Small Size (Car key / Zippo Lighter)

KJW Full Metal KC-02 Airsoft Gas Blowback Tactical Carbine / Sniper Rifle (Version: Type A) Hi-Capa Charging Handle The bb's we like withFeatures Full Nylon Fiber Aluminum body construction Removable, adjustable Front and Rear Flip up Sights 3 Rail Covers included Retractable M4 style LE stock FPS: 400 Color: Black The KJW KC02v2 is a Tactical Lightweight Rifle that is perfect for any medium to long range loadout. The internal gas system is based around a high efficiency magazine that can consistently shoot all 30 rounds with ease. The entire gun is made from Nylon Fiber and Aluminum