The LaserMax Micro is an ultra lightweight Green laser. It compact design may be small but it is also extremely durable. It will fit virtually any firearm with an accessory rail. The automatic 10 minute shutoff feature maintains battery preservation. The dual tap activation switch makes it perfect for right or left handed users. It has a 5 hour battery life from its bright 5mw beam. The laser has continuous or pulsating mode that is activated in 8 seconds.