Yankee Hill Machine Co YHM-9394 Flip-Up Front Sight Tower with Gas Block – AR-15 Platform

The Yankee Hill Machine Co Flip-Up Front Sight Tower (YHM-9394) combines a traditional A2-style front sight post with a low-profile gas block, providing a fixed sight solution for AR-15 builds using mid-length or carbine-length gas systems. The flip-up design allows co-witnessing with optics while maintaining the ability to deploy backup iron sights when needed. Precision-machined from steel with a durable finish, this assembly is ideal for shooters building rifles from the ground up or replacing worn factory components.

This sight tower includes an integrated gas block with mounting provision for a sling swivel stud. Installation requires proper alignment with the gas port and secure pinning or set screw attachment, depending on barrel configuration. The elevation-adjustable front sight post accepts standard AR-15 sight tools for zeroing. Compatible with AR-15 pattern barrels featuring a .750" gas block journal.

• Type: Flip-Up Front Sight Tower with Integrated Gas Block
• Platform: AR-15
• Sight Post: A2-Style, Elevation Adjustable
• Gas Block Diameter: .750"
• Material: Steel
• Features: Integrated Gas Block, Sling Swivel Lug
• Finish: Black
• Gas System Compatibility: Mid-Length, Carbine-Length