What weapons do space marines have?

Space Marines carry a variety of weapons based on individual chapters and what each Marine (or the squad he's apart of) is meant to do. Devastators carry heavy weapons such as las cannons and plasma cannons among others. Assault Marines are meant to get into close combat, so they carry pistols and close combat weapons like chain sWords and power weapons. A standard tactical marine would carry a standard issue bolter, and they all would carry a combat knife & grenades.