span aria label Laserguard Pro Installation Operation by Crimson Trace Corporation 2 years ago 6 minutes 5 seconds 17 567 views Laserguard Pro Installation Operation span Crimson trace ll-801g laserguard pro laserguard pro, s&w, m&p shield, grn 5 inch diameter at 50 feet laser battery life over two hours activation mode pressure activated light output […]