Harrington & Richardson Retro M16A1 20" AR-15 Upper 5.56 1:7 Rifle Length, Gray
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Harrington & Richardson
Overview
The Harrington & Richardson Retro M16A1 Upper is a complete assembly designed for the AR-15 platform, featuring a 20-inch barrel optimized for 5.56 NATO ammunition. With a rifle-length gas system and a 1:7 twist rate, this upper is engineered to stabilize heavier projectiles, making it a great choice for precision shooting and enhanced accuracy. This upper is commonly found in retro builds that aim to replicate the classic M16A1 profile.
Specifications
Harrington & Richardson Retro M16A1 20" AR-15 Upper 5.56 1:7 Rifle Length, Gray
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Build history on GunPartPicker
Builders on GunPartPicker first added the Harrington & Richardson Retro M16A1 20" AR-15 Upper 5.56 1:7 Rifle Length, Gray to a build in February 2026.
Today the one retailer we track has it in stock. Buying today, the lowest price is $699.99 at Palmetto State Armory.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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