Harrington & Richardson Retro "MP" AR-15 C158 Auto BCG
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Harrington & Richardson
Overview
The Harrington & Richardson Retro "MP" AR-15 C158 Auto BCG is designed for reliable performance in 5.56 NATO caliber builds, offering a solid foundation for your rifle's operation. Its phosphate finish provides a durable protective layer that helps resist corrosion and wear, ensuring longevity and consistent function. This bolt carrier group is commonly found in retro-style builds that aim to replicate the classic look and feel of earlier AR-15 models.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the Harrington & Richardson Retro "MP" AR-15 C158 Auto BCG to a build in March 2026.
Today the one retailer we track has it in stock. Buying today, the lowest price is $149.99 at Palmetto State Armory.
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