It's not a Galil. Look at the magwell, it's "enclosed" rather than the "open" AK-style magwell of the Galil. The Galil and Tavor are well-known, but the majority of IDF soldiers are issued with the US-American M4 or M16, because they are much cheaper than the IMI weapons. The one in the photo looks like a Mk18 CQBR (basically just a CQB M4).