Made in the USA, the Yankee Hill Machine YHM-9383 is a low-profile gas block engineered for .750″ bore barrels. It replaces a standard front sight and provides a slim footprint for compatibility with longer forearms on shorter-barrel rifles. Manufactured from steel and finished in black phosphate, the block mounts using two set screws for a straightforward installation. The design supports common AR-style accessory configurations where a low-profile gas block is required.
Key Specifications
- The manufacturer is Yankee Hill Machine (YHM).
- The model is YHM-9383 Low Profile Gas Block.
- The bore diameter is .750 inches.
- The overall product length is 0.95 inches.
- The material is steel.
- The finish is black phosphate.
- Mounting is accomplished with two set screws.
- Intended for AR-style platforms as an accessory: Yes.
- Functionally replaces the front sight to allow a rifle-length forearm on a carbine-length barrel.
With a compact profile and durable steel construction, the YHM-9383 offers a reliable, no-nonsense option for builders who need a low-profile gas block that supports extended handguards without altering the barrel. Its simple set-screw attachment and mil-spec phosphate finish make it a practical choice for robust, long-term use in AR-style builds.
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