SKU: YHM-9680
UPC: 816701013344
The Yankee Hill Machine Co Yhm Flip Rear Sight in Black is a combat-proven AR-15 rear sight designed for operators who demand reliability without unnecessary weight. This flip sight mounts directly to any Picatinny rail and features a quick-release thumb screw mechanism that keeps the optic clear of the bore until deployment. The rugged steel base paired with an aluminum stem delivers a strength-to-weight ratio critical for carbine-length platforms used in patrol, training, and tactical applications.
At 0.19 lbs, this sight adds minimal mass to your upper receiver while maintaining zero shift resistance through repeated deployment cycles. The 1/2 MOA adjustment increments allow fine-tuning to distance-specific zeros, and the standard rear peep aperture is purpose-built to co-witness with M16/M4-pattern front sights—a critical compatibility consideration for legacy rifle configurations and backup optic setups. The flip design positions the sight parallel to the rail when stowed, preventing snag points and maintaining low profile until actively engaged.
This sight is engineered for shooters running dual-optic systems or those who prioritize instant mechanical aiming capability. Law enforcement trainers and military-adjacent personnel favor flip rear sights in environments where electronic optics may fail or when secondary aiming devices must remain immediately accessible. The locking detent in the deployed position ensures the sight remains stable under recoil without requiring additional fastening, making it ideal for transition drills and dynamic shooting disciplines.
Picatinny-mounted flip sights represent the industry standard for AR-15 aftermarket aiming systems. Yankee Hill Machine Co has maintained consistent quality across their sight line, with this model fitting squarely into mid-tier production sights that balance cost efficiency with field-tested durability. The compact 3.25 x 1.25 x 5.5-inch footprint ensures minimal sight radius loss on shorter-length upper receivers common to carbine and mid-length gas systems.
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