The Firefield Combo Red Laser Sight is mountable to both barrels and weaver rails. This lightweight and compact laser sight helps with quick target acquisition to increase shooter’s accuracy. The 5mW red laser is visible to 300 yards at night and 20 yards during the day. The sight comes with a tactical on/off pressure pad, saving time in serious situation. The Combo Red Laser Sight’s IPX4 waterproof and shockproof rating is attributed to its durable aluminum construction. For quick changes in the field, the Firefield Combo Red Laser Sight offers windage and elevation adjustments.