Smith & Wesson Micro90 Compact LED Pistol Light Features:

• An affordable, lightweight weapon-mounted light designed to fit virtually all brands of pistols from sub-compacts to full size; includes mounting rails
• Weight:  1.4 oz with CR2 Lithium battery (included)
• No tools needed
• Small, lightweight
• 90 Lumen "Out the Bezel" light
• 2-hours continuous runtime
• UniBAR universal rail