Rise Armament RA-140 Single-Stage Trigger 3.5lb AR-15 Platform

The Rise Armament RA-140 Super Sporting trigger transforms AR-platform rifles with precision engineering that delivers consistent 3.5-pound break weights and minimal overtravel. This single-stage curved trigger provides the crisp, clean release competitive shooters and precision enthusiasts demand from their builds.

What Makes This Different

Unlike standard mil-spec triggers that often exhibit creep and inconsistent pull weights, the RA-140 features precision-machined components with tight tolerances that eliminate trigger slop. The single-stage design provides immediate engagement without the take-up found in two-stage systems. Rise Armament's proprietary heat treatment process ensures the sear surfaces maintain their geometry through thousands of firing cycles.

Key Features

• Consistent 3.5-pound pull weight with minimal variation between shots
• Single-stage curved design for immediate sear engagement
• Black hardcoat anodized finish resists wear and corrosion
• Drop-in installation compatible with standard AR-15/AR-10 lower receivers
• Precision-machined components with proprietary heat treatment
• Reduced overtravel and reset distance for faster follow-up shots
• Anti-walk pins included to prevent trigger movement under recoil

Competitive shooters appreciate the RA-140's repeatability across rapid strings of fire, while hunters benefit from the precise break point that enhances accuracy on critical shots. The trigger maintains consistent performance in temperature extremes and continues functioning reliably after extended use without cleaning. Law enforcement agencies have adopted this trigger for designated marksman rifles where shot placement accuracy is paramount.

Technical Specs

• Pull Weight: 3.5 pounds ± 0.2 pounds
• Configuration: Single-stage curved trigger
• Compatibility: AR-15, AR-10, and compatible platforms
• Finish: Black hardcoat anodized aluminum
• Installation: Drop-in design with anti-walk pins
• Materials: 7075-T6 aluminum trigger, hardened steel sear surfaces
• Manufacturer: Rise Armament, USA
• SKU: T017BLK

The RA-140 represents proven trigger technology that enhances accuracy without compromising reliability. Professional armorers recommend this trigger for builds where consistent performance matters more than rock-bottom pricing.