
Mission First Tactical

NcStar

Magpul

Magpul

Magpul

Ultradyne

Luth-AR

Samson

Magpul

Spike's Tactical

Magpul

Troy Industries

XS Sights

Daniel Defense

Knights Armament

Magpul

Mission First Tactical

NcStar

Magpul

Magpul

Magpul

Ultradyne

Luth-AR

Samson

Magpul

Spike's Tactical

Magpul

Troy Industries

XS Sights

Daniel Defense

Knights Armament

Magpul
The rear sight parts builders added most in October 2026, ranked from every build on GunPartPicker.
Updated · counts come from real builds on GunPartPicker
We analysed real builds to see what people actually run.
Read the full guide: AR-15 Rear Sight Guide →Prices checked · refreshed daily across 37 retailers