SIG TREAD ADJUSTABLE FLIP-UP SIGHTS

Description

The Sig Sauer Tread flip-up sight set is a factory-sourced iron sight kit designed as a direct fit for the M400 Tread platform, though owners have mounted them successfully on other Picatinny-railed AR-pattern rifles as well. Because these come from Sig’s own parts program rather than a third-party supplier, the geometry and mounting dimensions are matched to the Tread’s rail from the start, which removes the fitment guesswork that comes with universal aftermarket options.

Both front and rear sights fold flat when not in use, making them a practical co-witness backup behind a red dot or low-power variable. When a primary optic fails or loses zero in the field, flipping these up puts you back on target without swapping hardware. The adjustable design means you can dial in windage and elevation rather than relying on a fixed zero, which matters when transitioning sights between hosts or correcting for different ammunition profiles.

The kit ships with the hardware needed to mount on a Picatinny section, including a rail segment that allows installation over portions of the handguard that lack an integrated top rail. That makes the set usable on free-float configurations where the gas block area may sit below the rail line. For M400 Tread owners looking to replace lost or damaged factory sights, or for any AR shooter who wants a purpose-fit folding iron sight pair with adjustable zero capability, this kit covers the requirement without unnecessary complexity.