M16A1

The M16A1 is one of the most iconic and historically significant rifles in U.S. military service, serving as the primary infantry weapon during much of the Vietnam War and beyond.

The M16A1 evolved from the AR-15 design created by Eugene Stoner at ArmaLite in the late 1950s. Stoner's innovative lightweight rifle fired the small-caliber, high-velocity 5.56×45mm round (originally the .223 Remington), offering soldiers higher ammunition capacity, reduced recoil, and better controllability in full-auto fire compared to the heavier 7.62mm M14. The rifle entered combat testing in Vietnam as early as 1963–1964 with U.S. advisors and special forces, initially as the M16 (without the forward assist in some early models).

Lower Parts:

Lower Receiver: Gray Colt, M16A1 & Property of United States Military Marked

Stock: Colt A1 Stock (No Trapdoor)

Grip: Colt A1

Trigger: Colt Mil-Spec

Trigger Guard: Colt Gray

Rear Sling Mount: Built into stock

Upper Parts:

Upper Receiver: Colt A1 Gray upper with Forward Assist

Barrel: 20" pencil profile with rifle length gas system

Gas Block: Front Sight Base with bayonet lug

Muzzle Device: Bird Cage A1 Flash Hider