Matrix Full Metal 40mm M203 Airsoft Grenade Launcher for M4/M16 Series Airsoft Rifles
(Model: Short / Black / Matrix Multi-Purpose Package)

"Yes, just yes. This is everything you want in an M203 Grenade Launcher. I bought this for for my Matrix M4 since the Grenade Launcher that came with it didn't work. However, the Matrix Full Metal Grenade Launcher is so good, fun to shoot and reliable. The pin actually moves the grenade pin forward, causing a huge explosion of bb's to occur. If you need a grenade launcher, definitely go for this one! You won't regret it.

"This Grenade Launcher is the only launcher I have and it is really sturdy and very little wobbling. From an aesthetic point of view this is also an awesome item not to mention it is super fun!

"Works great, fits great.

Main reason for the review was a PSA that 40 Mike grenades do not fit unless forced into the launcher. Im going to shave down the inside so the blues will wit, but the reds are too long. You have to hit the slide override to move the hatch out far enough to get a red 40 mike in.