UTG & Yellowstar Tactical Low-Profile Flip-Up Front & Rear Sights, Black — Dual-Aperture Picatinny Mount

This slim flip-up sight pair from UTG & Yellowstar Tactical combines a super-low profile with rugged materials to give shooters a durable backup iron sight system that tucks away when not needed. Machined from aircraft-grade aluminum with a hard black anodized finish, the sights are built to resist wear and maintain alignment under regular use. The design emphasizes a small footprint on the rail, positive retention when deployed, and quick deployment using spring-assisted plungers.

How does the low-profile design improve my setup?

The sights sit close to the rail so they don't interfere with optics or cheek weld, making them suitable as backup iron sights (BUIS) or for optic-free builds. Because they fold flat, you can keep a red dot or scope centered while retaining an instant fallback option. Their compact form reduces snagging and preserves a clean upper receiver silhouette.

• Super low-profile footprint for minimal obstruction
• Fold-down design keeps optics clear when stowed
• 3mm locking bolt secures the mounting deck to Picatinny rails

What makes deployment and retention reliable?

Each sight uses a robust posi-lock plunger paired with a spring-activated ball bearing to lock the sight upright and hold zero during use. The plunger is simple to compress for folding and requires deliberate pressure to unlock, reducing accidental collapse. That mechanical engagement gives a tactile, positive feel when the sight locks into place.

• Posi-lock plunger and ball-bearing for secure retention
• Spring-assisted action for fast, one-handed deployment
• Designed to resist accidental folding under recoil or movement

How versatile are the aiming options on the rear sight?

The rear sight features dual aiming apertures to suit different engagement distances and lighting conditions. One aperture provides a larger window for rapid target acquisition at close range, while the smaller aperture supports more precise aligning at extended ranges. This dual-aperture arrangement helps shooters adapt quickly without changing parts or tools.

• Large aperture for quick, close-range aiming
• Small aperture for finer alignment at distance
• Useful in low-visibility or dynamic shooting scenarios

The sights are engineered for straightforward installation and repeatable performance. Mounting uses a low-profile 3mm locking bolt and a dedicated mounting deck that clamps securely to any standard Picatinny rail. Because the package is lightweight and compact, it’s suitable across a wide range of long-gun applications where preserving rail space is important.

Who is this for? These UTG & Yellowstar Tactical flip-up sights are aimed at shooters who want dependable backup iron sights that stay out of the way until needed. They suit sport shooters, hunters, and tactical users who run optics but want a rugged, low-profile BUIS option. Install them on carbines, patrol rifles, and other long guns that use Picatinny rails when you need a compact, fast-deploying sighting solution without adding bulk.