A lever-action tactical rifle having an upper receiver assembly having a rifle barrel and a hand-guard. A lower receiver releasably and pivotally connected with the upper receiver and having a butt-stock and a magazine receptacle releasably containing a cartridge magazine. A bolt mechanism having a bolt carrier and a bolt member and firing pin being located for reciprocating movement within the upper receiver. A lever-action mechanism is mounted to the lower receiver and is connected with the bolt carrier by an actuating linkage. The bolt member has cam slots being engaged by cam pins of the bolt carrier to translate linear movement of the bolt carrier to rotation of the bolt for bolt locking and unlocking.