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The Colt M16 Upper Group 20In Handguard Stripped is a military-spec upper receiver assembly built on the proven M16A2/A4 platform. This stripped configuration gives you the core upper—barrel, bolt carrier group housing, and charging handle provisions—without optics or rail systems, making it an ideal foundation for AR-pattern rifle builds that demand authentic mil-spec dimensions and reliability. Whether you're assembling a retro-correct M16 clone, restoring a classic platform, or building a lightweight rifle around proven geometry, this upper delivers the heritage and durability shooters have trusted for decades.
The 20-inch barrel features the same Government profile found on M16A2 and M16A4 rifles, chrome-lined for corrosion resistance and a long service life. The 1-7 inch twist rate stabilizes the full range of 5.56 NATO and .223 Remington ammunition, from standard-weight rounds to modern heavier projectiles. Chrome-lined chamber and bore mean easier cleaning, greater longevity, and the kind of hard-use toughness that defines military small arms.
This is a stripped upper—no handguard, rail system, or furniture included—so you have complete control over your build's ergonomics and aesthetics. Pair it with a lower receiver and your choice of handguard, gas tube, and controls to create exactly the rifle you want. The straightforward, time-tested design means no learning curve and maximum compatibility with standard AR parts.
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