Which famous military endorsement most helped Colt overcome initial negative reports about the M16 rifle's reliability in Vietnam?

The adoption of the M16 rifle by the US military during the Vietnam War represents one of the most controversial product launches in military history. When first introduced, the rifle had significant reliability issues that cost soldiers' lives. This poll explores how Colt's marketing and government endorsements influenced military procurement despite early field problems. Test your knowledge about this infamous case study in military product development and marketing.

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General William Westmoreland's public support despite documented field failures
Secretary of Defense Robert McNamara's personal guarantee of the weapon's effectiveness
President Lyndon Johnson's televised demonstration firing the rifle at his Texas ranch
The Navy SEALs' exclusive use of the rifle in their special operations