The Palestinian Islamic Jihad al-Quds Brigades in Gaza has acquired a number of FN FN2000 rifles complete with grenade launchers. Given the relatively few potential sources of these rifles, the most obvious explination is that former Libyan rebels are exporting the weapons they captured during the civil war.

I am willing to bet they were not able to procure 40x46mm grenades for those launchers.

[Hat Tip: Rouge Adventurer ]