Next Level Training is adding a new training tool for the AR-15 platform, the SIRT-AR Bolt. By replacing your bolt carrier with the SIRT-AR Bolt you will be able to train with a self resetting trigger that activates a laser fired down the barrel of your rifle using your upper, your optics, and your lower. Simply open the rear takedown pin, remove your bolt carrier, insert the SIRT-AR Bolt and trigger bar, close and latch the take down pin and you are ready to train! With the SIRT-AR Bolt, you can now train shooting with an offset, weapons manipulation, mag changes, presentation shots, transitions from primary to secondary, and strong side to weak side.