The term PART OF NRA is composed of two crossword solutions: RIFLE (5 letters) and ASSN (4 letters). RIFLE stands for the National RIFLE Association, which is a non-profit organization in the United States that advocates for gun rights. ASSN stands for Association, which is the official name of the National RIFLE Association. The National RIFLE Association was founded in 1871 and is one of the oldest civil rights organizations in the United States.