RISE's RA-140 Super Sporting Trigger (SST) for ARs has been a popular choice for many customers and now it's even better than ever as the Rave 140. Extreme reliability through enhanced engineering. No take-up - just a smooth, crisp break and a short Quik-Klik(TM) reset you can feel. Elementary installation - no set screws to tighten. Sleek appearance to accompany the enhanced performance. Available with curved or flat trigger blade. Single stage, 3.5-lb. pull weight. The ideal cost-conscious upgrade. Includes free anti-walk pins for worry-free. Installation. Melonite-coated interior parts for enhanced strength and co Mfg: Rise Armament