




Click to see full view
Harrington & Richardson
Overview
The Harrington & Richardson 20" M16A1 Pencil Barrel is designed for precision and lightweight performance, featuring a 20-inch length and a pencil profile that helps reduce overall weight without sacrificing rigidity. Chambered in 5.56 NATO with a 1:7 twist rate, this barrel is optimized for stabilizing a variety of bullet weights, making it versatile for different shooting applications. Commonly found in rifle-length gas system builds, this barrel caters to builders looking for a reliable and efficient option for their AR-15 projects.
Harrington & Richardson 20" M16A1 Pencil Barrel, 5.56, 1/7,Parkerized, CH Bore, Stripped
Harrington & Richardson 20" M16A1 Pencil Barrel, 5.56, 1/7,Parkerized, CH Bore, Stripped ranked #97 of the 298 barrels builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since March 2026. All time, it ranks #240 of the 814 barrels builders have added.
Today the one retailer we track has it in stock. Buying today, the lowest price is $239.99 at Palmetto State Armory.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
The part most often added in each category by the 4 builds that include this one

Yankee Hill Machine AR-15 Billet Upper Receiver - Stripped

Yankee Hill Machine AR-15 Stripped Lower Receiver

Cryptic Coatings 5.56 NATO AR-15 Bolt Carrier Group - Mystic Bronze

Yankee Hill Machine Co. AR-15 Gas Tube Black Rifle

CMMG AR-15 Carbine Action Buffer Spring - 55CA9A2

Yankee Hill Machine AR-15 Charging Handle
Builds in the community that include the Harrington & Richardson 20" M16A1 Pencil Barrel, 5.56, 1/7,Parkerized, CH Bore, Stripped
| Build | Parts | Total |
|---|---|---|
![]() | 28 | $2221.62 |
No reviews yet. Be the first to review this product!