FSI Polymer Flip-Up Front & Rear Sights for Picatinny Rails | Black

Overview

The FSI Polymer Flip-Up Front and Rear Sights are engineered for quick, reliable aiming on platforms that use Picatinny or Weaver rails. Constructed from impact-resistant polymer with a matte black finish, these sights deliver durable performance without adding unnecessary weight. A spring-loaded deployment mechanism lets you flip the sights into place with a deliberate click, and they retract flush when not in use—helping maintain a clean profile.

Designed with field use in mind, the sights blend lightweight efficiency with rugged resilience. The compact form minimizes bulk, supports clear alignment, and helps with co-witnessing across common sight planes. Whether you are at the range, in training, or transitioning between firing modes, these sights offer a practical, non-indoctrinating enhancement to your setup.

Key benefits at a glance

• Spring-loaded deployment for fast, one-handed engagement and retraction.
• Compatibility with most Picatinny and Weaver rails for broad versatility.
• Durable, high-quality sighting solution crafted from impact-resistant polymer.
• Easy to install with a secure fit to Picatinny/Weaver rails using the included tool.
• Package includes a front and rear flip-up sight set plus an Allen key for setup.

Real world use and feel

Imagine a routine field exercise or a day at the range where rapid sighting matters. The sights offer a tactile, satisfying deployment and a stable, snag-free stance when stowed. The polymer body resists everyday bumps and scrapes, while the matte finish helps reduce glare in bright conditions. With both sights deployed, you can establish a clear reticle quickly and re-acquire targets efficiently after transitions.

Compatibility and installation

These flip-up sights are designed to mount easily on most Picatinny and Weaver rails. The included Allen key helps ensure a confident, repeatable tighten without over-torque, so setup can be completed in minutes and checked for alignment before you head out.

What you get

The package includes a front and a rear flip-up sight pair along with a compact Allen key for installation, making it straightforward to outfit compatible rifles and carbines.