*SOLD* Colt AR-15 SP1 .223 Rem Black 20" *AMERICAS FAVORITE SPORTING RIFLE*

Bryant Ridge's Analysis:

The Colt AR-15 SP1 is a historically significant rifle that closely mirrors the original military-issued M16, designed for the civilian market in a semi-automatic configuration. Chambered in .223 Remington, this model features a 20-inch chrome moly barrel with a 1:12 twist rate—ideal for stabilizing lighter 55-grain projectiles, consistent with the ammunition used during the Vietnam-era service years. Finished in anodized black, the SP1 sports classic design elements such as the retro-style triangular handguard, A2-style fixed stock and pistol grip, and the A2 front sight post. This particular example is equipped with a Colt 4x20 scope mounted on the carry handle, offering period-correct optics and enhancing its vintage appeal and functionality.
 
Introduced in 1964, the Colt AR-15 SP1 was the first civilian-available version of the military M16 and was derived directly from the original ArmaLite design, which Colt had acquired in 1959. The SP1 represented a leap in rifle design with its lightweight aluminum construction, direct impingement gas system, and modularity—features that laid the groundwork for decades of development in the AR platform. As one of the earliest mass-produced semi-automatic AR-15s, the SP1 holds a special place among collectors and enthusiasts, especially in its original configuration with standard markings and fixed carry handle. This rifle not only serves as a functional piece of shooting history but also stands as a symbol of the AR platform’s enduring legacy in both civilian and military use.

Specifications:

Manufacturer: Colt
Model: AR-15 SP1
Serial: SP180167
Caliber: .223 Remington
Finish: Anodized Black 
Barrel Length: 20" Chrome Moly Barrel with 1:12 Twist
Optics/Sights: A2 Post Front with Colt 4x20 Barrel on Carry Handle 
Stock/Grips: A2 Grip and Stock, Retro Style Triangular Handguard
Action: Semi-Automatic 
Markings: Standard

Jul 4th 2025 Bryant Ridge

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