Vietnam War
The baptism of fire for the Western intermediate-caliber doctrine: M16 vs AK-47 in the jungle.
Context and course
The U.S. entered Vietnam with the old M14 in 7.62 NATO, awkward in the jungle. From 1965 the Eugene Stoner-designed M16 in 5.56×45 was introduced, light and high-cadence. Early batches suffered serious reliability issues (wrong ball powder, missing cleaning kits), causing casualties and a media crisis.
On the opposite side, the AK-47 and AKM equipped both the NVA and the Viet Cong: rugged weapons, reliable in humid and muddy environments, suited to light infantry. The war fixed in collective imagination the M16 vs AK duality and the idea of the light assault rifle as standard issue.
Belligerents
South Vietnam, USA, Australia, South Korea, Thailand
North Vietnam, Viet Cong, with USSR and China backing
Iconic weapons of the conflict
- M16 / M16A1
U.S. 5.56 rifle, mass-introduced from 1965.
- AK-47 / AKM
Soviet/Chinese rifle of the NVA and VC.
- M14
7.62 NATO battle rifle, proved poorly suited to jungle warfare.
- M60
U.S. 7.62 NATO general-purpose machine gun.
- M1911A1
American service pistol.
- Stoner 63 / XM177
Experimentals for special operations.
In the ARSENALIS catalog (3)
Doctrinal legacy
Established the paradigm of the light assault rifle as standard issue and exposed the limits of a 'full power' caliber for medium-range warfare.