M7 Bayonet

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The M7 Bayonet is a bayonet used by the U.S. military for the M16 rifle. It was introduced in 1964, when the M16 replaced the M14 rifle, and was gradually phased in throughout the Vietnam War.

The M7 is quite similar to the older M6 bayonet. The most notable differences between the two are the diameter of the muzzle rings, the more ergonomic shape of the M7's handle, and the locking mechanism. The M7's release mechanism is on the pommel, while the M6 has a spring-loaded lever near the guard that when depressed releases the bayonet. Both models are approximately the same length, have the same black finish, and use the M8A1 sheath.

The M7 was replaced to a certain extent by the M9 bayonet and, later in the Marine Corps, by the OKC-3S bayonet.