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Yankee Hill Machine
Overview
The Yankee Hill Machine Co., Inc. Diamond Series Handguard is a 12-inch aluminum handguard designed specifically for AR-15 platforms with a rifle-length gas system. Featuring a Picatinny mounting interface, it allows for easy attachment of accessories and optics, providing a solid and customizable platform for your rifle build. This handguard is frequently utilized in builds that chamber the 5.56 NATO caliber, making it a popular choice among builders looking for reliable performance and versatility.
Prices checked
Builders have been adding the Yankee Hill Machine Co. Diamond Series Handguard, Rifle to their builds on GunPartPicker since February 2026. All time, it ranks #67 of the 793 handguards builders have added. Builds with this handguard are mostly chambered in 5.56 NATO (79%, then .223 Wylde 13%), split between mid-length (39%) and carbine-length (33%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in October 2026, and today 5 of the 6 retailers we track have it in stock. Prices barely moved in October 2026, holding around $163.32, so there haven't been real sales lately. Buying today, the lowest price is $167.65 at KY Gun Company.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every handguard by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Handguard Trends →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Yankee Hill Machine Co., Inc. Diamond Series Handguard, Rifle
| Build | Parts | Total |
|---|---|---|
 | 10 | $1480.03 |
 | 23 | $1815.82 |
 | 26 | $2069.72 |
 | 11 | $1477.54 |
 | 10 | $984.64 |
1 global rating
Top reviews
Yankee Hill Machine Diamond Series rifle length handguard is lightweight thanks to the diamond cutout pattern but stays rigid under c-clamp pressure. Aluminum body is well machined. Black anodize is consistent. Solid rail at a reasonable price.
