"the right of the people to keep and bear Arms, shall not be infringed"
seems to imply unlimited types and numbers of arms, whereas the full quote (i.e. not 'partial') quote;
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed".
clearly indicates the context of a national militia force, with clear and inherent limits.
2)A partial quote could also mean one that contains partiality, i.e. leaning towards an opinion, rather than being 'impartial';
"Every voter is free to vote for either candidate; the left-wing tree-hugging starry-eyed liberal, or the fine, upstanding conservative"