Crimson Trace 0169601 Laserguard Pro S&W M&P Shield 45 ACP, Red LaserLaserguard Pro for Smith & Wesson M&P Shield . 45 ACP is a powerful red laser sight and 150 Lumen LED white light in a single compact unit. Designed specifically for the M&P Shield 45 platform, this illumination and targeting product is activated with Crimson Trace's famed Instinctive Activation, which activates the unit with a normal firing grip. LL 808 offers four modes of operation: Laser + Light, Laser Only, Light Only, and Laser + Light Strobe.