Soldiers in today's modern armies have access to ever more advanced infantry weapons; lighter, more compact and more accurate than anything seen in the last century. These include combat pistols, personal assault rifles, sub-machine guns, sniper rifles, shotguns, light machine guns and squad automatic weapons. Infantry Small Arms of the 21st Century features all these weapons and more in exhaustive detail. The author draws on the operational combat experience of the users in war zones such as Iraq, Afghanistan and Ukraine. As well as assessing and comparing the potency of different nations weapon systems , the book looks to the future demands of the infantry man. As in the case of the author's previous work Guns of Special Forces 2001-2015, the result is an affordable, comprehensive and authoritative study of modern infantry weapons.