Ruger BX- Trigger~ Assembly 2.75Lb (PR90462)The BX Trigger is a light, crisp, "drop in" replacement trigger assembly that is compatible with all Ruger 10 22 rifles and 22 Charger pistols. The BX Trigger is a Genuine Ruger Factory Accessory and is the perfect upgrade for all 10 22 rifles and 22 Charger pistol models because of the significantly reduced pull weight of approximately 2. 75 pounds (versus 6 pounds on the standard 10 22 trigger). The BX Trigger is sold as a complete assembly that