Sterling, 23, triggered fury among anti-gun campaigners who called for the striker to be axed from the World Cup squad over 'sick' tattoo RAHEEM ... tattoo of an M16 assault rifle on his right ...

Despite early controversies and setbacks in Vietnam, the M16 proved its worth. The rifle’s design has evolved, leading to variants like the M4 and specialized models used by special operations ...

The M16 rifle was headed into choppy waters ... high-velocity weapon. Meanwhile, a new rifle design from the ArmaLite corporation was gaining a lot of attention. Developed by small arms designer ...