The RA-140 Flat Super Sporting Trigger (SST) is a high-performing, cost-effective upgrade to replace mil-spec triggers. It has a straight, flat trigger blade and includes anti-walk pins for installation.

• Clean break with a short reset
• Flat, straight trigger blade for enhanced control and lighter-feeling pull weight
• Includes free anti-walk trigger pins — a $12 value
• Single-stage trigger system
• 3.5-lb. pull weight
• Drop safety feature
• Black 8625 hardcoat anodized aluminum cassette
• Unit weight: 2.6 oz.
• Manufactured and assembled in RA's own facility according to strict AS9100 aerospace requirements, which are more stringent than standard gun manufacturing requirements
• CNC machined from high-grade, heat-treated tool steel and aluminum
• Fits AR-style platforms built to Mil-Spec dimensions (calibers include .223/5.56, .308, 6.5, 9mm, and more)
• Self-contained design makes it easy and quick to install with no fine-tuning needed
• Installation instructions can be viewed in the video below, or read/downloaded at https://www.risearmament.com/blog/how-to-install-your-rise-armament-trigger/
• Our products are backed by a lifetime guarantee. If you have any issues with a RISE Armament product, please email us at racustomerservice@risearmament.com.
• Note: The center set screw should not be tampered with. Any attempts to modify the trigger will void the warranty.