G&P 40mm Rubber Projectile Cap Type Airsoft Gas Grenade Shell
(Package: One)

"They actually work rather well BUT....

do not buy these if you have this launcher because they will NOT work....

http://www.evike.com/products/66902/

"These projectiles are awesome!!! I bought my grenade launcher with the intent of using it as a grenade launcher and these things work great! When you fire them the launcher makes a loud pop and the projectile goes flying a good 100 feet. So if you play any sort of tactical games that require clearing of buildings, this will work great.

The only issue, is the caps like to run away! They always travel a lot farther than expected, and are incredibly hard to spot. I recommend painting them a bright colour to try and keep track!

But beyond that, i highly recommend buying these, as they work exactly how you would expect, and in my personal opinion make great use of the grenade launcher.

"Good shock and awe value when fired in a tight space..perfect for those technical kills or that one guy who won't call his hits!

Pros-
Small
Multiple use projectile
Varied gas options
Good range for a grenade

Cons-
None!