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Helpful Positive Review
Great gas block by Drewjm, July 25, 2016
I've had other gas blocks and this by far was the easiest to install and the clamp style was great. Put a free float handguard on so the low profile was great. Highly recommend this gas block for a low profile gas block
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Code: YHM-RGB-YHM-9378

MPN: YHM-9378

UPC: 816701013597

Product No Longer Available

Product Info for Yankee Hill Machine Specter Gas Block Assembly YHM-9378

Allows the user to mount forearms that extend beyond the standard gas return system, provided the inside diameter of the forearm is 1.625 inches or greater. Allows mounting of forearms without the removal of your pinned or welded muzzle accessory. Consists of a simple, durable two-piece design. Mounted by four socket head cap screws uing a 7/64 inch Allen wrench. Made from high quality steel and fnished with mil-spec phosphate coating.image

Specifications for Yankee Hill Machine Specter Gas Block Assembly YHM-9378:

Mfg Item Num:  YHM-9378
Type:  ACCESSORIES - GUN ACCESSORIES - GUN PARTS
made in specialized factories:  made in specialized factories
Tactica:  Tactical
Master Model Header:  Specter Gas Block

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  • Yankee Hill Machine Specter Gas Block Assembly , MPN: YHM-9378 , UPC: 816701013597 , Code: YHM-RGB-YHM-9378
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Last updated 2026-08-15 UTC.