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These unique forearms feature diamond shaped heat vents, an extended top rail for gap-free installation, “T” marked rails to mark accessory locations, they accept our end caps, and utilize our anti-rotation screws for secure installation. The forearms and barrel nuts are made of 6061-T6 aluminum and hardcoated to military specifications. The jam nut and anti-rotation screws are steel and plated a matte black finish to match.

Overall Length 7.2 Inches.
Total Weight 12.5 Oz
Hardcoat Anodized matte black to Military Specifications or better
Made of 6061-T6 aluminum

The Black Diamond® Series Handguard comes with all necessary parts for installation, including:
Carbine Length Black Diamond® Handguard (7.29″)
Barrel Nut (YHM-9483)
Jamb Nut
Anti-Rotation Screws
Installation Instructions

Want to hide your gas block and create a longer site radius?
Both a Midlength as well as a Specter length forearm will hide a Carbine length gas system built with our low profile gas block, YHM-9383 or YHM-9384






Handguard Length



Yankee Hill Machine

Handguard Type

Quad Rail


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Yankee Hill Black Diamond Quad Rail 7.290” Carbine Handguard

Our Price:

  • MSRP$156.95
  • MPNYHM-9630-DX
  • UPC816701012583
Yankee Hill Black Diamond Quad Rail 7.290'' Carbine Handguard $133.50

Total in stock: 4

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5004 State Highway 74 Cape Girardeau, MO 63701
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