Interesting reading on the Israeli Security Website (Shin Bet) under Terror Data and Trends, regarding 'high trajectory launchings from Gaza and the Sinai'- here's their september report:
https://www.shabak.gov.il/SiteCollec...r%202015en.pdf
Here's some information on the smuggling of arms circa 2010 in the Sinai area, sourced from the Israeli Security Agency here:
2010 Annual Summary ? Data and Trends in Terrorism
Throughout 2010, much weaponry has been smuggled into the Gaza Strip, to include many hundreds of standard rockets (the majority of these rockets extend to 20km and 40km), about a thousand mortar shells, dozens of AT missiles, tons of standard explosives, and tons of raw material for explosives production.
The smuggling route starting in Iran and passing through Sudan and Sinai continues to be a key element for Palestinian terror organizations. Iran plays a key role in assisting the Palestinian terror organizations and Hizballah to strengthen their military capabilities – it provides high quality weaponry; it funds training for military activists; and it directs terror activity through various Arab countries, especially Syria and Lebanon.
(Fell upon this site by chance- am totally impartial to political leanings...)