End Of Work Package

UNIT AND DIRECT SUPPORT

M242 25-MM AUTOMATIC GUN (NSN 1005-01-086-1400) M242 25-MM ENHANCED AUTOMATIC GUN (NSN 1005-01-454-0396)

THEORY OF OPERATION

BARREL ASSEMBLY OPERATION

PROJECTILE OUT

PROJECTILE OUT

M242 Parts
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The barrel assembly gives directional control to projectile. The barrel assembly consists of the following components.

a. BARREL:

(1) Receives rounds in the cartridge chamber at breech end of barrel.

(2) Helps contain explosive force when round fires.

(3) Develops a right-spin rotation to projectile.

b. MUZZLE BRAKE:

(1) Counters some explosive recoil force.

(2) Disperses muzzle blast.

(3) Reduces blast flash.

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