Technical data

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Charging Handle Assembly (1)
This assembly provides initial charging of the weapon. The handle latch locks the charging handle assembly
in the forward position during sustained fire to prevent injury to the operator.
Bolt Carrier Assembly (2)
This assembly provides stripping, chambering, locking, firing, extraction, and ejection of cartridges using the
drive springs and projectile propelling gases for power.
M16A2 Upper Receiver and Barrel Assembly (3)
The upper receiver provides support for the bolt carrier assembly. The barrel chambers the cartridge for
firing and directs the projectile.
Magazine (4)
The magazine holds cartridges ready for feeding and provides a guide for positioning cartridges for stripping.
It provides quick reload capabilities for sustained firing.
Lower Receiver and Buttstock Assembly (5)
This assembly provides firing control for the rifle and carbine. Storage for basic cleaning materials is
provided in the M16A2, M16A3, and M16A4 rifles.
Sling (6)
The sling provides the means for carrying the weapon.
Back-up Iron Sight (BUIS) (7)
The BUIS can be used to sight the weapon when other means are unavailable.
M4/M4A1 Upper Receiver and Barrel Assembly (8)
The upper receiver provides support for the bolt carrier assembly. The barrel chambers the cartridge for
firing and directs the projectile. The upper receiver contains an integral mounting rail to which various
accessories attach.
M16A3 and M16A4 Upper Receiver and Barrel Assembly (9)
The upper receiver provides support for the bolt carrier assembly. The barrel chambers the cartridge for
firing and directs the projectile. The upper receiver contains an integral mounting rail to which various
accessories attach.
END OF WORK PACKAGE