Infantry Weapons Fundamentals Flashcards

What is the primary mission of the Mk 19 automatic grenade launcher?

Answer: Engage personnel and lightly armored vehicles with high-volume 40mm fire

The Mk 19 provides high-volume 40mm grenade fire to suppress, neutralize, or destroy personnel and lightly armored vehicles.

Which of the following describes a 'controlled pair' when engaging a target?

Answer: Two aimed shots fired in rapid succession with a brief sight realignment between each

A controlled pair is two aimed shots fired rapidly but with deliberate sight picture reacquisition between each round to ensure accuracy.

What does SPORTS stand for in immediate action procedures for the M16/M4?

Answer: Slap, Pull, Observe, Release, Tap, Squeeze

SPORTS — Slap, Pull, Observe, Release, Tap, Squeeze — is the immediate action drill for the M16/M4 to clear most malfunctions rapidly.

At what range is the M4A1 carbine zeroed under the standard Marine Corps battlesight zero (BZO)?

Answer: 25 meters (equivalent to 300-meter point of impact)

The M4A1 is zeroed at 25 meters with the point of impact set to correspond with a 300-meter zero, enabling effective engagement out to 300 meters.

Which condition of the Marine Corps weapons condition system indicates the weapon is at its safest state?

Answer: Condition 4 — no magazine, no round chambered, bolt forward, safety on

Condition 4 is the safest state: no magazine inserted, no round in the chamber, bolt forward, and safety on.

What is the purpose of the bipod on the M249 SAW?

Answer: Provide a stable firing platform in the prone or fighting position

The M249's integral bipod deploys to give the gunner a stable, accurate firing platform especially in the prone supported position.

Which grenade type is used to signal or mark positions rather than cause casualties?

Answer: AN-M8 smoke grenade

The AN-M8 smoke grenade produces dense white smoke used for signaling, marking positions, and obscuring movement.